diff --git a/lib/hooks/relationship-hooks.js b/lib/hooks/relationship-hooks.js
index a22fcc427..2cea2cf8d 100644
--- a/lib/hooks/relationship-hooks.js
+++ b/lib/hooks/relationship-hooks.js
@@ -1,392 +1,383 @@
 // @flow
 
 import * as React from 'react';
 import uuid from 'uuid';
 
 import { useAllowOlmViaTunnelbrokerForDMs } from './flag-hooks.js';
 import { useGetAndUpdateDeviceListsForUsers } from './peer-list-hooks.js';
 import { useNewThickThread } from './thread-hooks.js';
 import { updateRelationships as serverUpdateRelationships } from '../actions/relationship-actions.js';
 import { useLegacyAshoatKeyserverCall } from '../keyserver-conn/legacy-keyserver-call.js';
 import { pendingToRealizedThreadIDsSelector } from '../selectors/thread-selectors.js';
 import { dmOperationSpecificationTypes } from '../shared/dm-ops/dm-op-utils.js';
 import { useProcessAndSendDMOperation } from '../shared/dm-ops/process-dm-ops.js';
 import {
-  userSupportsThickThreads,
+  userHasDeviceList,
   getPendingThreadID,
 } from '../shared/thread-utils.js';
 import type { RelationshipOperation } from '../types/messages/update-relationship.js';
 import type { AppState } from '../types/redux-types.js';
 import {
   type RelationshipAction,
   type RelationshipErrors,
   type RelationshipRequestUserInfo,
   type RelationshipRequest,
   relationshipActions,
   userRelationshipStatus,
 } from '../types/relationship-types.js';
 import { threadTypes } from '../types/thread-types-enum.js';
 import { useSelector } from '../utils/redux-utils.js';
 import sleep from '../utils/sleep.js';
 
 type RobotextPlanForUser =
   | { +plan: 'send_to_thin_thread' }
   | {
       +plan: 'send_to_existing_thick_thread',
       +thickThreadID: string,
     }
   | { +plan: 'send_to_new_thick_thread' };
 
 // We can't call processAndSendDMOperation until device lists are in
 // AuxUserStore, but this hook needs to support users who haven't been fetched
 // yet. We implement an effect that watches AuxUserStore after a fetch, so we
 // know when we're ready to call processAndSendDMOperation.
 type Step =
   | { +step: 'ongoing' }
   | {
       +step: 'waiting_for_updated_device_lists',
       +action: RelationshipAction,
       +userIDs: $ReadOnlyArray<string>,
       +waitingForUserIDs: $ReadOnlyArray<string>,
       +resolve: RelationshipErrors => void,
       +reject: Error => mixed,
     };
 
 const deviceListTimeout = 10 * 1000; // ten seconds
 
 function useUpdateRelationships(): (
   action: RelationshipAction,
   userIDs: $ReadOnlyArray<string>,
 ) => Promise<RelationshipErrors> {
   const viewerID = useSelector(
     state => state.currentUserInfo && state.currentUserInfo.id,
   );
   const processAndSendDMOperation = useProcessAndSendDMOperation();
   const sendRobotextToThickThread = React.useCallback(
     async (
       userID: string,
       thickThreadID: string,
       relationshipOperation: RelationshipOperation,
     ): Promise<void> => {
       if (!viewerID) {
         console.log('skipping sendRobotextToThickThread since logged out');
         return;
       }
       const op = {
         type: 'update_relationship',
         threadID: thickThreadID,
         creatorID: viewerID,
         time: Date.now(),
         operation: relationshipOperation,
         targetUserID: userID,
         messageID: uuid.v4(),
       };
       const opSpecification = {
         type: dmOperationSpecificationTypes.OUTBOUND,
         op,
         // We need to use a different mechanism than `all_thread_members`
         // because when creating a thread, the thread might not yet
         // be in the store.
         recipients: {
           type: 'some_users',
           userIDs: [viewerID, userID],
         },
       };
       await processAndSendDMOperation(opSpecification);
     },
     [viewerID, processAndSendDMOperation],
   );
 
   const updateRelationships = useLegacyAshoatKeyserverCall(
     serverUpdateRelationships,
   );
   const auxUserInfos = useSelector(state => state.auxUserStore.auxUserInfos);
   const pendingToRealizedThreadIDs = useSelector((state: AppState) =>
     pendingToRealizedThreadIDsSelector(state.threadStore.threadInfos),
   );
   const userInfos = useSelector(state => state.userStore.userInfos);
   const rawThreadInfos = useSelector(
     (state: AppState) => state.threadStore.threadInfos,
   );
   const createNewThickThread = useNewThickThread();
 
   // This callback contains the core of the logic. We extract it here because
   // before we run it, we need to make sure auxUserInfos is correctly populated,
   // and that might require waiting on a Redux action to be reduced
   const updateRelationshipsAndSendRobotext = React.useCallback(
     async (action: RelationshipAction, userIDs: $ReadOnlyArray<string>) => {
       if (!viewerID) {
         console.log(
           'skipping updateRelationshipsAndSendRobotext since logged out',
         );
         return {};
       }
       const planForUsers = new Map<string, RobotextPlanForUser>();
       for (const userID of userIDs) {
-        const supportsThickThreads = userSupportsThickThreads(
-          userID,
-          auxUserInfos,
-        );
+        const supportsThickThreads = userHasDeviceList(userID, auxUserInfos);
         if (!supportsThickThreads) {
           planForUsers.set(userID, { plan: 'send_to_thin_thread' });
           continue;
         }
 
         const pendingThreadID = getPendingThreadID(
           threadTypes.PERSONAL,
           [userID, viewerID],
           null,
         );
 
         const realizedThreadID =
           pendingToRealizedThreadIDs.get(pendingThreadID);
         if (!realizedThreadID) {
           planForUsers.set(userID, { plan: 'send_to_new_thick_thread' });
           continue;
         }
 
         const rawThreadInfo = rawThreadInfos[realizedThreadID];
         if (!rawThreadInfo) {
           console.log(
             `could not find rawThreadInfo for realizedThreadID ` +
               `${realizedThreadID} found for pendingThreadID ` +
               pendingThreadID,
           );
           planForUsers.set(userID, { plan: 'send_to_new_thick_thread' });
           continue;
         }
 
         if (rawThreadInfo.type === threadTypes.PERSONAL) {
           planForUsers.set(userID, {
             plan: 'send_to_existing_thick_thread',
             thickThreadID: realizedThreadID,
           });
         } else {
           planForUsers.set(userID, { plan: 'send_to_thin_thread' });
         }
       }
 
       const usersForKeyserverCall: {
         [userID: string]: RelationshipRequestUserInfo,
       } = {};
       for (const [userID, planForUser] of planForUsers) {
         usersForKeyserverCall[userID] = {
           createRobotextInThinThread:
             planForUser.plan === 'send_to_thin_thread',
         };
       }
 
       let request: RelationshipRequest;
       if (action === 'farcaster' || action === 'friend') {
         request = { action, users: usersForKeyserverCall };
       } else {
         request = { action, users: usersForKeyserverCall };
       }
       const keyserverResultPromise = updateRelationships(request);
 
       const thickThreadPromises: Array<Promise<void>> = [];
       for (const [userID, planForUser] of planForUsers) {
         if (planForUser.plan === 'send_to_thin_thread') {
           // Keyserver calls handles creating robotext for thin threads
           continue;
         }
         if (
           action !== relationshipActions.FRIEND &&
           action !== relationshipActions.FARCASTER_MUTUAL
         ) {
           // We only create robotext for FRIEND and FARCASTER_MUTUAL
           continue;
         }
 
         const relationshipStatus = userInfos[userID]?.relationshipStatus;
         let relationshipOperation;
         if (action === relationshipActions.FARCASTER_MUTUAL) {
           relationshipOperation = 'farcaster_mutual';
         } else if (
           relationshipStatus === userRelationshipStatus.FRIEND ||
           relationshipStatus === userRelationshipStatus.REQUEST_RECEIVED
         ) {
           relationshipOperation = 'request_accepted';
         } else {
           relationshipOperation = 'request_sent';
         }
 
         if (planForUser.plan === 'send_to_existing_thick_thread') {
           const { thickThreadID } = planForUser;
           thickThreadPromises.push(
             sendRobotextToThickThread(
               userID,
               thickThreadID,
               relationshipOperation,
             ),
           );
           continue;
         }
 
         const createThickThreadAndSendRobotextPromise = (async () => {
           const thickThreadID = await createNewThickThread({
             type: threadTypes.PERSONAL,
             initialMemberIDs: [userID],
           });
           return await sendRobotextToThickThread(
             userID,
             thickThreadID,
             relationshipOperation,
           );
         })();
         thickThreadPromises.push(createThickThreadAndSendRobotextPromise);
       }
 
       const [keyserverResult] = await Promise.all([
         keyserverResultPromise,
         Promise.all(thickThreadPromises),
       ]);
       return keyserverResult;
     },
     [
       viewerID,
       updateRelationships,
       auxUserInfos,
       pendingToRealizedThreadIDs,
       sendRobotextToThickThread,
       userInfos,
       rawThreadInfos,
       createNewThickThread,
     ],
   );
 
   const [step, setStep] = React.useState<?Step>();
 
   // This hook watches AuxUserStore after a fetch to make sure we're ready to
   // call processAndSendDMOperation. We can't do that from the returned
   // callback, as it will have an old version of auxUserInfos bound into it.
   React.useEffect(() => {
     if (step?.step !== 'waiting_for_updated_device_lists') {
       return;
     }
     const { action, userIDs, waitingForUserIDs, resolve, reject } = step;
     for (const userID of waitingForUserIDs) {
-      const supportsThickThreads = userSupportsThickThreads(
-        userID,
-        auxUserInfos,
-      );
+      const supportsThickThreads = userHasDeviceList(userID, auxUserInfos);
       if (!supportsThickThreads) {
         // It's safe to wait until every single user ID in waitingForUserIDs
         // passes this check because we make the same check when populating
         // waitingForUserIDs in the callback below
         return;
       }
     }
     setStep({ step: 'ongoing' });
     updateRelationshipsAndSendRobotext(action, userIDs).then(resolve, reject);
   }, [step, auxUserInfos, updateRelationshipsAndSendRobotext]);
 
   const usingOlmViaTunnelbrokerForDMs = useAllowOlmViaTunnelbrokerForDMs();
   const getAndUpdateDeviceListsForUsers = useGetAndUpdateDeviceListsForUsers();
 
   const coreFunctionality = React.useCallback(
     async (action: RelationshipAction, userIDs: $ReadOnlyArray<string>) => {
       // We only need to create robotext for FRIEND and FARCASTER_MUTUAL,
       // so we skip the complexity below for other RelationshipActions
       if (
         !usingOlmViaTunnelbrokerForDMs ||
         (action !== relationshipActions.FRIEND &&
           action !== relationshipActions.FARCASTER_MUTUAL)
       ) {
         let request: RelationshipRequest;
         if (action === 'farcaster' || action === 'friend') {
           const users = Object.fromEntries(
             userIDs.map(userID => [
               userID,
               {
                 createRobotextInThinThread: true,
               },
             ]),
           );
           request = { action, users };
         } else {
           const users = Object.fromEntries(userIDs.map(userID => [userID, {}]));
           request = { action, users };
         }
         return await updateRelationships(request);
       }
 
       const missingDeviceListsUserIDs: Array<string> = [];
       for (const userID of userIDs) {
-        const supportsThickThreads = userSupportsThickThreads(
-          userID,
-          auxUserInfos,
-        );
+        const supportsThickThreads = userHasDeviceList(userID, auxUserInfos);
         if (!supportsThickThreads) {
           missingDeviceListsUserIDs.push(userID);
         }
       }
 
       if (missingDeviceListsUserIDs.length > 0) {
         const deviceLists = await getAndUpdateDeviceListsForUsers(
           missingDeviceListsUserIDs,
           true,
         );
 
         const waitingForUserIDs: Array<string> = [];
         for (const userID of missingDeviceListsUserIDs) {
           if (deviceLists[userID] && deviceLists[userID].devices.length > 0) {
             waitingForUserIDs.push(userID);
           }
         }
 
         if (waitingForUserIDs.length > 0) {
           const nextStepPromise = new Promise<RelationshipErrors>(
             (resolve, reject) => {
               setStep({
                 step: 'waiting_for_updated_device_lists',
                 action,
                 userIDs,
                 waitingForUserIDs,
                 resolve,
                 reject,
               });
             },
           );
           return await Promise.race([
             nextStepPromise,
             (async () => {
               await sleep(deviceListTimeout);
               throw new Error(`Fetch device lists timed out`);
             })(),
           ]);
         }
       }
 
       return await updateRelationshipsAndSendRobotext(action, userIDs);
     },
     [
       getAndUpdateDeviceListsForUsers,
       updateRelationshipsAndSendRobotext,
       updateRelationships,
       auxUserInfos,
       usingOlmViaTunnelbrokerForDMs,
     ],
   );
 
   return React.useCallback(
     async (action: RelationshipAction, userIDs: $ReadOnlyArray<string>) => {
       if (step) {
         console.log(
           'updateRelationships called from same component before last call ' +
             'finished. ignoring',
         );
         return {};
       }
       setStep({ step: 'ongoing' });
       try {
         return await coreFunctionality(action, userIDs);
       } finally {
         setStep(null);
       }
     },
     [step, coreFunctionality],
   );
 }
 
 export { useUpdateRelationships };
diff --git a/lib/shared/dm-ops/dm-op-utils.js b/lib/shared/dm-ops/dm-op-utils.js
index b16f51f70..dc548b5cb 100644
--- a/lib/shared/dm-ops/dm-op-utils.js
+++ b/lib/shared/dm-ops/dm-op-utils.js
@@ -1,491 +1,488 @@
 // @flow
 
 import invariant from 'invariant';
 import _groupBy from 'lodash/fp/groupBy.js';
 import * as React from 'react';
 import uuid from 'uuid';
 
 import {
   type ProcessDMOperationUtilities,
   type ProcessingPossibilityCheckResult,
 } from './dm-op-spec.js';
 import { dmOpSpecs } from './dm-op-specs.js';
 import { useProcessAndSendDMOperation } from './process-dm-ops.js';
 import { useFindUserIdentities } from '../../actions/user-actions.js';
 import { useLoggedInUserInfo } from '../../hooks/account-hooks.js';
 import { useGetLatestMessageEdit } from '../../hooks/latest-message-edit.js';
 import { useGetAndUpdateDeviceListsForUsers } from '../../hooks/peer-list-hooks.js';
 import { mergeUpdatesWithMessageInfos } from '../../reducers/message-reducer.js';
 import { getAllPeerUserIDAndDeviceIDs } from '../../selectors/user-selectors.js';
 import { type P2PMessageRecipient } from '../../tunnelbroker/peer-to-peer-context.js';
 import type {
   CreateThickRawThreadInfoInput,
   DMAddMembersOperation,
   DMAddViewerToThreadMembersOperation,
   DMOperation,
   ComposableDMOperation,
 } from '../../types/dm-ops.js';
 import type { RawMessageInfo } from '../../types/message-types.js';
 import type {
   RawThreadInfo,
   ThickRawThreadInfo,
   ThreadInfo,
 } from '../../types/minimally-encoded-thread-permissions-types.js';
 import type { InboundActionMetadata } from '../../types/redux-types.js';
 import {
   outboundP2PMessageStatuses,
   type OutboundP2PMessage,
 } from '../../types/sqlite-types.js';
 import {
   assertThickThreadType,
   thickThreadTypes,
 } from '../../types/thread-types-enum.js';
 import type { LegacyRawThreadInfo } from '../../types/thread-types.js';
 import {
   type DMOperationP2PMessage,
   userActionsP2PMessageTypes,
 } from '../../types/tunnelbroker/user-actions-peer-to-peer-message-types.js';
 import { updateTypes } from '../../types/update-types-enum.js';
 import type { ClientUpdateInfo } from '../../types/update-types.js';
 import { getContentSigningKey } from '../../utils/crypto-utils.js';
 import { useSelector } from '../../utils/redux-utils.js';
 import { messageSpecs } from '../messages/message-specs.js';
-import { userSupportsThickThreads } from '../thread-utils.js';
+import { userHasDeviceList } from '../thread-utils.js';
 import { updateSpecs } from '../updates/update-specs.js';
 
 function generateMessagesToPeers(
   message: DMOperation,
   peers: $ReadOnlyArray<{
     +userID: string,
     +deviceID: string,
   }>,
 ): $ReadOnlyArray<OutboundP2PMessage> {
   const opMessage: DMOperationP2PMessage = {
     type: userActionsP2PMessageTypes.DM_OPERATION,
     op: message,
   };
   const plaintext = JSON.stringify(opMessage);
   const outboundP2PMessages = [];
   for (const peer of peers) {
     const messageToPeer: OutboundP2PMessage = {
       messageID: uuid.v4(),
       deviceID: peer.deviceID,
       userID: peer.userID,
       timestamp: new Date().getTime().toString(),
       plaintext,
       ciphertext: '',
       status: outboundP2PMessageStatuses.persisted,
       supportsAutoRetry: dmOpSpecs[message.type].supportsAutoRetry,
     };
     outboundP2PMessages.push(messageToPeer);
   }
   return outboundP2PMessages;
 }
 
 export const dmOperationSpecificationTypes = Object.freeze({
   OUTBOUND: 'OutboundDMOperationSpecification',
   INBOUND: 'InboundDMOperationSpecification',
 });
 
 type OutboundDMOperationSpecificationRecipients =
   | { +type: 'all_peer_devices' | 'self_devices' }
   | { +type: 'some_users', +userIDs: $ReadOnlyArray<string> }
   | { +type: 'all_thread_members', +threadID: string }
   | { +type: 'some_devices', +deviceIDs: $ReadOnlyArray<string> };
 
 // The operation generated on the sending client, causes changes to
 // the state and broadcasting information to peers.
 export type OutboundDMOperationSpecification = {
   +type: 'OutboundDMOperationSpecification',
   +op: DMOperation,
   +recipients: OutboundDMOperationSpecificationRecipients,
   +sendOnly?: boolean,
 };
 
 export type OutboundComposableDMOperationSpecification = {
   +type: 'OutboundDMOperationSpecification',
   +op: ComposableDMOperation,
   +recipients: OutboundDMOperationSpecificationRecipients,
   // Composable DM Ops are created only to be sent, locally we use
   // dedicated mechanism for updating the store.
   +sendOnly: true,
   +composableMessageID: string,
 };
 
 // The operation received from other peers, causes changes to
 // the state and after processing, sends confirmation to the sender.
 export type InboundDMOperationSpecification = {
   +type: 'InboundDMOperationSpecification',
   +op: DMOperation,
   +metadata: ?InboundActionMetadata,
 };
 
 export type DMOperationSpecification =
   | OutboundDMOperationSpecification
   | InboundDMOperationSpecification;
 
 function useCreateMessagesToPeersFromDMOp(): (
   operation: DMOperation,
   recipients: OutboundDMOperationSpecificationRecipients,
 ) => Promise<$ReadOnlyArray<OutboundP2PMessage>> {
   const allPeerUserIDAndDeviceIDs = useSelector(getAllPeerUserIDAndDeviceIDs);
   const utilities = useSendDMOperationUtils();
   const auxUserInfos = useSelector(state => state.auxUserStore.auxUserInfos);
   const getAndUpdateDeviceListsForUsers = useGetAndUpdateDeviceListsForUsers();
 
   const getUsersWithoutDeviceList = React.useCallback(
     (userIDs: $ReadOnlyArray<string>) => {
       const missingDeviceListsUserIDs: Array<string> = [];
       for (const userID of userIDs) {
-        const supportsThickThreads = userSupportsThickThreads(
-          userID,
-          auxUserInfos,
-        );
+        const supportsThickThreads = userHasDeviceList(userID, auxUserInfos);
         if (!supportsThickThreads) {
           missingDeviceListsUserIDs.push(userID);
         }
       }
       return missingDeviceListsUserIDs;
     },
     [auxUserInfos],
   );
 
   const getMissingPeers = React.useCallback(
     async (
       userIDs: $ReadOnlyArray<string>,
     ): Promise<$ReadOnlyArray<P2PMessageRecipient>> => {
       const missingDeviceListsUserIDs = getUsersWithoutDeviceList(userIDs);
       if (missingDeviceListsUserIDs.length === 0) {
         return [];
       }
 
       const deviceLists = await getAndUpdateDeviceListsForUsers(
         missingDeviceListsUserIDs,
         true,
       );
 
       const updatedPeers: Array<P2PMessageRecipient> = [];
       for (const userID of missingDeviceListsUserIDs) {
         if (deviceLists[userID] && deviceLists[userID].devices.length > 0) {
           updatedPeers.push(
             ...deviceLists[userID].devices.map(deviceID => ({
               deviceID,
               userID,
             })),
           );
         }
       }
       return updatedPeers;
     },
     [getAndUpdateDeviceListsForUsers, getUsersWithoutDeviceList],
   );
 
   return React.useCallback(
     async (
       operation: DMOperation,
       recipients: OutboundDMOperationSpecificationRecipients,
     ): Promise<$ReadOnlyArray<OutboundP2PMessage>> => {
       const { viewerID, threadInfos } = utilities;
       if (!viewerID) {
         return [];
       }
 
       let peerUserIDAndDeviceIDs = allPeerUserIDAndDeviceIDs;
       if (recipients.type === 'self_devices') {
         peerUserIDAndDeviceIDs = allPeerUserIDAndDeviceIDs.filter(
           peer => peer.userID === viewerID,
         );
       } else if (recipients.type === 'some_users') {
         const missingPeers = await getMissingPeers(recipients.userIDs);
         const updatedPeers = [...allPeerUserIDAndDeviceIDs, ...missingPeers];
 
         const userIDs = new Set(recipients.userIDs);
         peerUserIDAndDeviceIDs = updatedPeers.filter(peer =>
           userIDs.has(peer.userID),
         );
       } else if (recipients.type === 'all_thread_members') {
         const { threadID } = recipients;
         if (!threadInfos[threadID]) {
           console.log(
             `all_thread_members called for threadID ${threadID}, which is ` +
               'missing from the ThreadStore. if sending a message soon after ' +
               'thread creation, consider some_users instead',
           );
         }
         const members = threadInfos[recipients.threadID]?.members ?? [];
         const memberIDs = members.map(member => member.id);
 
         const missingPeers = await getMissingPeers(memberIDs);
         const updatedPeers = [...allPeerUserIDAndDeviceIDs, ...missingPeers];
 
         const userIDs = new Set(memberIDs);
         peerUserIDAndDeviceIDs = updatedPeers.filter(peer =>
           userIDs.has(peer.userID),
         );
       } else if (recipients.type === 'some_devices') {
         const deviceIDs = new Set(recipients.deviceIDs);
         peerUserIDAndDeviceIDs = allPeerUserIDAndDeviceIDs.filter(peer =>
           deviceIDs.has(peer.deviceID),
         );
       }
 
       const thisDeviceID = await getContentSigningKey();
       const targetPeers = peerUserIDAndDeviceIDs.filter(
         peer => peer.deviceID !== thisDeviceID,
       );
       return generateMessagesToPeers(operation, targetPeers);
     },
     [allPeerUserIDAndDeviceIDs, getMissingPeers, utilities],
   );
 }
 
 function getCreateThickRawThreadInfoInputFromThreadInfo(
   threadInfo: ThickRawThreadInfo,
 ): CreateThickRawThreadInfoInput {
   const roleID = Object.keys(threadInfo.roles).pop();
   const thickThreadType = assertThickThreadType(threadInfo.type);
   return {
     threadID: threadInfo.id,
     threadType: thickThreadType,
     creationTime: threadInfo.creationTime,
     parentThreadID: threadInfo.parentThreadID,
     allMemberIDsWithSubscriptions: threadInfo.members.map(
       ({ id, subscription }) => ({
         id,
         subscription,
       }),
     ),
     roleID,
     unread: !!threadInfo.currentUser.unread,
     name: threadInfo.name,
     avatar: threadInfo.avatar,
     description: threadInfo.description,
     color: threadInfo.color,
     containingThreadID: threadInfo.containingThreadID,
     sourceMessageID: threadInfo.sourceMessageID,
     repliesCount: threadInfo.repliesCount,
     pinnedCount: threadInfo.pinnedCount,
     timestamps: threadInfo.timestamps,
   };
 }
 
 function useAddDMThreadMembers(): (
   newMemberIDs: $ReadOnlyArray<string>,
   threadInfo: ThreadInfo,
 ) => Promise<void> {
   const viewerID = useSelector(
     state => state.currentUserInfo && state.currentUserInfo.id,
   );
   const processAndSendDMOperation = useProcessAndSendDMOperation();
   const threadInfos = useSelector(state => state.threadStore.threadInfos);
 
   return React.useCallback(
     async (newMemberIDs: $ReadOnlyArray<string>, threadInfo: ThreadInfo) => {
       const rawThreadInfo = threadInfos[threadInfo.id];
       invariant(rawThreadInfo.thick, 'thread should be thick');
       const existingThreadDetails =
         getCreateThickRawThreadInfoInputFromThreadInfo(rawThreadInfo);
 
       invariant(viewerID, 'viewerID should be set');
       const addViewerToThreadMembersOperation: DMAddViewerToThreadMembersOperation =
         {
           type: 'add_viewer_to_thread_members',
           existingThreadDetails,
           editorID: viewerID,
           time: Date.now(),
           messageID: uuid.v4(),
           addedUserIDs: newMemberIDs,
         };
       const viewerOperationSpecification: OutboundDMOperationSpecification = {
         type: dmOperationSpecificationTypes.OUTBOUND,
         op: addViewerToThreadMembersOperation,
         recipients: {
           type: 'some_users',
           userIDs: newMemberIDs,
         },
         sendOnly: true,
       };
 
       invariant(viewerID, 'viewerID should be set');
       const addMembersOperation: DMAddMembersOperation = {
         type: 'add_members',
         threadID: threadInfo.id,
         editorID: viewerID,
         time: Date.now(),
         messageID: uuid.v4(),
         addedUserIDs: newMemberIDs,
       };
       const newMemberIDsSet = new Set<string>(newMemberIDs);
       const recipientsThreadID =
         threadInfo.type === thickThreadTypes.THICK_SIDEBAR &&
         threadInfo.parentThreadID
           ? threadInfo.parentThreadID
           : threadInfo.id;
 
       const existingMembers =
         threadInfos[recipientsThreadID]?.members
           ?.map(member => member.id)
           ?.filter(memberID => !newMemberIDsSet.has(memberID)) ?? [];
 
       const addMembersOperationSpecification: OutboundDMOperationSpecification =
         {
           type: dmOperationSpecificationTypes.OUTBOUND,
           op: addMembersOperation,
           recipients: {
             type: 'some_users',
             userIDs: existingMembers,
           },
         };
 
       await Promise.all([
         processAndSendDMOperation(viewerOperationSpecification),
         processAndSendDMOperation(addMembersOperationSpecification),
       ]);
     },
     [processAndSendDMOperation, threadInfos, viewerID],
   );
 }
 
 function getThreadUpdatesForNewMessages(
   rawMessageInfos: $ReadOnlyArray<RawMessageInfo>,
   updateInfos: $ReadOnlyArray<ClientUpdateInfo>,
   utilities: ProcessDMOperationUtilities,
 ): Array<ClientUpdateInfo> {
   const { threadInfos, viewerID } = utilities;
 
   const { rawMessageInfos: allNewMessageInfos } = mergeUpdatesWithMessageInfos(
     rawMessageInfos,
     updateInfos,
   );
   const messagesByThreadID = _groupBy(message => message.threadID)(
     allNewMessageInfos,
   );
 
   const updatedThreadInfosByThreadID: {
     [string]: RawThreadInfo | LegacyRawThreadInfo,
   } = {};
   for (const threadID in messagesByThreadID) {
     updatedThreadInfosByThreadID[threadID] = threadInfos[threadID];
   }
   for (const update of updateInfos) {
     const updatedThreadInfo = updateSpecs[update.type].getUpdatedThreadInfo?.(
       update,
       updatedThreadInfosByThreadID,
     );
     if (updatedThreadInfo) {
       updatedThreadInfosByThreadID[updatedThreadInfo.id] = updatedThreadInfo;
     }
   }
 
   const newUpdateInfos: Array<ClientUpdateInfo> = [];
   for (const threadID in messagesByThreadID) {
     const repliesCountIncreasingMessages = messagesByThreadID[threadID].filter(
       message => messageSpecs[message.type].includedInRepliesCount,
     );
 
     let threadInfo = updatedThreadInfosByThreadID[threadID];
 
     if (repliesCountIncreasingMessages.length > 0) {
       const repliesCountIncreaseTime = Math.max(
         repliesCountIncreasingMessages.map(message => message.time),
       );
       const newThreadInfo = {
         ...threadInfo,
         repliesCount:
           threadInfo.repliesCount + repliesCountIncreasingMessages.length,
       };
       newUpdateInfos.push({
         type: updateTypes.UPDATE_THREAD,
         id: uuid.v4(),
         time: repliesCountIncreaseTime,
         threadInfo: newThreadInfo,
       });
       threadInfo = newThreadInfo;
     }
 
     const messagesFromOtherPeers = messagesByThreadID[threadID].filter(
       message => message.creatorID !== viewerID,
     );
     if (messagesFromOtherPeers.length === 0) {
       continue;
     }
     // We take the most recent timestamp to make sure that
     // change_thread_read_status operation older
     // than it won't flip the status to read.
     const time = Math.max(messagesFromOtherPeers.map(message => message.time));
     invariant(threadInfo.thick, 'Thread should be thick');
 
     // We aren't checking if the unread timestamp is lower than the time.
     // We're doing this because we want to flip the thread to unread after
     // any new message from a non-viewer.
     newUpdateInfos.push({
       type: updateTypes.UPDATE_THREAD_READ_STATUS,
       id: uuid.v4(),
       time,
       threadID: threadInfo.id,
       unread: true,
     });
   }
 
   return newUpdateInfos;
 }
 
 async function checkMessageIDConflict(
   dmOperation: DMOperation,
   utilities: ProcessDMOperationUtilities,
 ): Promise<ProcessingPossibilityCheckResult> {
   if (!dmOperation.messageID) {
     return {
       isProcessingPossible: true,
     };
   }
   const messageID = dmOperation.messageID;
   const message = await utilities.fetchMessage(messageID);
   if (message) {
     console.log(
       `Discarded a ${dmOperation.type} operation because ` +
         `message with the same ID ${messageID} already exists ` +
         'in the store',
     );
     return {
       isProcessingPossible: false,
       reason: {
         type: 'invalid',
       },
     };
   }
   return {
     isProcessingPossible: true,
   };
 }
 
 function useSendDMOperationUtils(): $ReadOnly<{
   ...ProcessDMOperationUtilities,
   viewerID: ?string,
 }> {
   const fetchMessage = useGetLatestMessageEdit();
   const threadInfos = useSelector(state => state.threadStore.threadInfos);
   const entryInfos = useSelector(state => state.entryStore.entryInfos);
   const findUserIdentities = useFindUserIdentities();
   const loggedInUserInfo = useLoggedInUserInfo();
   const viewerID = loggedInUserInfo?.id;
   return React.useMemo(
     () => ({
       viewerID,
       fetchMessage,
       threadInfos,
       entryInfos,
       findUserIdentities,
     }),
     [viewerID, fetchMessage, threadInfos, entryInfos, findUserIdentities],
   );
 }
 
 export {
   useCreateMessagesToPeersFromDMOp,
   useAddDMThreadMembers,
   getCreateThickRawThreadInfoInputFromThreadInfo,
   getThreadUpdatesForNewMessages,
   checkMessageIDConflict,
   useSendDMOperationUtils,
 };
diff --git a/lib/shared/search-utils.js b/lib/shared/search-utils.js
index 2acc85700..1dc14f46b 100644
--- a/lib/shared/search-utils.js
+++ b/lib/shared/search-utils.js
@@ -1,523 +1,523 @@
 // @flow
 
 import * as React from 'react';
 
 import { messageID } from './message-utils.js';
 import SearchIndex from './search-index.js';
 import {
   getContainingThreadID,
   userIsMember,
-  userSupportsThickThreads,
+  userHasDeviceList,
 } from './thread-utils.js';
 import {
   searchMessagesActionTypes,
   useSearchMessages as useSearchMessagesAction,
 } from '../actions/message-actions.js';
 import {
   searchUsers,
   searchUsersActionTypes,
 } from '../actions/user-actions.js';
 import { ENSCacheContext } from '../components/ens-cache-provider.react.js';
 import genesis from '../facts/genesis.js';
 import { useIdentitySearch } from '../identity-search/identity-search-context.js';
 import { useLegacyAshoatKeyserverCall } from '../keyserver-conn/legacy-keyserver-call.js';
 import { decodeThreadRolePermissionsBitmaskArray } from '../permissions/minimally-encoded-thread-permissions.js';
 import type {
   ChatMessageInfoItem,
   MessageListData,
 } from '../selectors/chat-selectors.js';
 import { useUserSearchIndex } from '../selectors/nav-selectors.js';
 import { relationshipBlockedInEitherDirection } from '../shared/relationship-utils.js';
 import type { AuxUserInfos } from '../types/aux-user-types.js';
 import type { MessageInfo, RawMessageInfo } from '../types/message-types.js';
 import type {
   RoleInfo,
   ThreadInfo,
   RelativeMemberInfo,
 } from '../types/minimally-encoded-thread-permissions-types.js';
 import { userRelationshipStatus } from '../types/relationship-types.js';
 import { threadPermissions } from '../types/thread-permission-types.js';
 import type { ThreadRolePermissionsBlob } from '../types/thread-permission-types.js';
 import {
   type ThreadType,
   threadTypeIsSidebar,
   threadTypeIsThick,
 } from '../types/thread-types-enum.js';
 import type {
   AccountUserInfo,
   GlobalAccountUserInfo,
   UserListItem,
 } from '../types/user-types.js';
 import { isValidENSName } from '../utils/ens-helpers.js';
 import { values } from '../utils/objects.js';
 import { useDispatchActionPromise } from '../utils/redux-promise-utils.js';
 import { useSelector } from '../utils/redux-utils.js';
 import { usingCommServicesAccessToken } from '../utils/services-utils.js';
 
 const notFriendNotice = 'not friend';
 
 function appendUserInfo({
   results,
   shouldExcludeUserFromResult,
   userInfo,
   parentThreadInfo,
   communityThreadInfo,
   containingThreadInfo,
 }: {
   +results: {
     [id: string]: {
       ...AccountUserInfo | GlobalAccountUserInfo,
       isMemberOfParentThread: boolean,
       isMemberOfContainingThread: boolean,
     },
   },
   +shouldExcludeUserFromResult: (userID: string) => boolean,
   +userInfo: AccountUserInfo | GlobalAccountUserInfo,
   +parentThreadInfo: ?ThreadInfo,
   +communityThreadInfo: ?ThreadInfo,
   +containingThreadInfo: ?ThreadInfo,
 }) {
   const { id } = userInfo;
   if (id in results || shouldExcludeUserFromResult(id)) {
     return;
   }
 
   const memberInfo: ?RelativeMemberInfo = communityThreadInfo?.members.find(
     m => m.id === id,
   );
 
   const role: ?RoleInfo = memberInfo?.role
     ? communityThreadInfo?.roles[memberInfo.role]
     : null;
 
   const decodedRolePermissions: ?ThreadRolePermissionsBlob = role?.permissions
     ? decodeThreadRolePermissionsBitmaskArray(role.permissions)
     : null;
 
   const hasKnowOfPermission =
     decodedRolePermissions?.[threadPermissions.KNOW_OF] === true;
 
   if (communityThreadInfo && !hasKnowOfPermission) {
     return;
   }
   results[id] = {
     ...userInfo,
     isMemberOfParentThread: userIsMember(parentThreadInfo, id),
     isMemberOfContainingThread: userIsMember(containingThreadInfo, id),
   };
 }
 
 function usePotentialMemberItems({
   text,
   userInfos,
   auxUserInfos,
   excludeUserIDs,
   includeServerSearchUsers,
   inputParentThreadInfo,
   inputCommunityThreadInfo,
   threadType,
 }: {
   +text: string,
   +userInfos: { +[id: string]: AccountUserInfo },
   +auxUserInfos: AuxUserInfos,
   +excludeUserIDs: $ReadOnlyArray<string>,
   +includeServerSearchUsers?: $ReadOnlyArray<GlobalAccountUserInfo>,
   +inputParentThreadInfo?: ?ThreadInfo,
   +inputCommunityThreadInfo?: ?ThreadInfo,
   +threadType?: ?ThreadType,
 }): UserListItem[] {
   const memoizedUserInfos = React.useMemo(() => values(userInfos), [userInfos]);
   const searchIndex: SearchIndex = useUserSearchIndex(memoizedUserInfos);
 
   const communityThreadInfo = React.useMemo(
     () =>
       inputCommunityThreadInfo && inputCommunityThreadInfo.id !== genesis().id
         ? inputCommunityThreadInfo
         : null,
     [inputCommunityThreadInfo],
   );
   const parentThreadInfo = React.useMemo(
     () =>
       inputParentThreadInfo && inputParentThreadInfo.id !== genesis().id
         ? inputParentThreadInfo
         : null,
     [inputParentThreadInfo],
   );
 
   const containingThreadID = threadType
     ? getContainingThreadID(parentThreadInfo, threadType)
     : null;
 
   const containingThreadInfo = React.useMemo(() => {
     if (containingThreadID === parentThreadInfo?.id) {
       return parentThreadInfo;
     } else if (containingThreadID === communityThreadInfo?.id) {
       return communityThreadInfo;
     }
     return null;
   }, [containingThreadID, communityThreadInfo, parentThreadInfo]);
 
   const shouldExcludeUserFromResult = React.useCallback(
     (userID: string) => {
       if (excludeUserIDs.includes(userID)) {
         return true;
       }
       return !!(
         threadType &&
         threadTypeIsThick(threadType) &&
-        !userSupportsThickThreads(userID, auxUserInfos)
+        !userHasDeviceList(userID, auxUserInfos)
       );
     },
     [auxUserInfos, excludeUserIDs, threadType],
   );
 
   const filteredUserResults = React.useMemo(() => {
     const results: {
       [id: string]: {
         ...AccountUserInfo | GlobalAccountUserInfo,
         isMemberOfParentThread: boolean,
         isMemberOfContainingThread: boolean,
       },
     } = {};
     if (text === '') {
       for (const id in userInfos) {
         appendUserInfo({
           results,
           shouldExcludeUserFromResult,
           userInfo: userInfos[id],
           parentThreadInfo,
           communityThreadInfo,
           containingThreadInfo,
         });
       }
     } else {
       const ids = searchIndex.getSearchResults(text);
       for (const id of ids) {
         appendUserInfo({
           results,
           shouldExcludeUserFromResult,
           userInfo: userInfos[id],
           parentThreadInfo,
           communityThreadInfo,
           containingThreadInfo,
         });
       }
     }
 
     if (includeServerSearchUsers) {
       for (const userInfo of includeServerSearchUsers) {
         appendUserInfo({
           results,
           shouldExcludeUserFromResult,
           userInfo,
           parentThreadInfo,
           communityThreadInfo,
           containingThreadInfo,
         });
       }
     }
 
     let userResults = values(results);
     if (text === '') {
       userResults = userResults.filter(userInfo => {
         if (!containingThreadInfo) {
           return userInfo.relationshipStatus === userRelationshipStatus.FRIEND;
         }
         if (!userInfo.isMemberOfContainingThread) {
           return false;
         }
         const { relationshipStatus } = userInfo;
         if (!relationshipStatus) {
           return true;
         }
         return !relationshipBlockedInEitherDirection(relationshipStatus);
       });
     }
 
     return userResults;
   }, [
     communityThreadInfo,
     containingThreadInfo,
     includeServerSearchUsers,
     parentThreadInfo,
     searchIndex,
     shouldExcludeUserFromResult,
     text,
     userInfos,
   ]);
 
   const sortedMembers = React.useMemo(() => {
     const nonFriends = [];
     const blockedUsers = [];
     const friends = [];
     const containingThreadMembers = [];
     const parentThreadMembers = [];
 
     for (const userResult of filteredUserResults) {
       const { relationshipStatus } = userResult;
       if (
         relationshipStatus &&
         relationshipBlockedInEitherDirection(relationshipStatus)
       ) {
         blockedUsers.push(userResult);
       } else if (userResult.isMemberOfParentThread) {
         parentThreadMembers.push(userResult);
       } else if (userResult.isMemberOfContainingThread) {
         containingThreadMembers.push(userResult);
       } else if (relationshipStatus === userRelationshipStatus.FRIEND) {
         friends.push(userResult);
       } else {
         nonFriends.push(userResult);
       }
     }
 
     const sortedResults = parentThreadMembers
       .concat(containingThreadMembers)
       .concat(friends)
       .concat(nonFriends)
       .concat(blockedUsers);
 
     return sortedResults.map(
       ({
         isMemberOfContainingThread,
         isMemberOfParentThread,
         relationshipStatus,
         ...result
       }) => {
         let notice, alert;
         const username = result.username;
         if (
           relationshipStatus &&
           relationshipBlockedInEitherDirection(relationshipStatus)
         ) {
           notice = 'user is blocked';
           alert = {
             title: 'User is blocked',
             text:
               `Before you add ${username} to this chat, ` +
               'you’ll need to unblock them. You can do this from the Block List ' +
               'in the Profile tab.',
           };
         } else if (!isMemberOfContainingThread && containingThreadInfo) {
           if (!threadType || !threadTypeIsSidebar(threadType)) {
             notice = 'not in community';
             alert = {
               title: 'Not in community',
               text: 'You can only add members of the community to this chat',
             };
           } else {
             notice = 'not in parent chat';
             alert = {
               title: 'Not in parent chat',
               text: 'You can only add members of the parent chat to a thread',
             };
           }
         } else if (
           !containingThreadInfo &&
           relationshipStatus !== userRelationshipStatus.FRIEND
         ) {
           notice = notFriendNotice;
           alert = {
             title: 'Not a friend',
             text:
               `Before you add ${username} to this chat, ` +
               'you’ll need to send them a friend request. ' +
               'You can do this from the Friend List in the Profile tab.',
           };
         } else if (parentThreadInfo && !isMemberOfParentThread) {
           notice = 'not in parent chat';
         }
         if (notice) {
           result = { ...result, notice };
         }
         if (alert) {
           result = { ...result, alert };
         }
         return result;
       },
     );
   }, [containingThreadInfo, filteredUserResults, parentThreadInfo, threadType]);
 
   return sortedMembers;
 }
 
 function useSearchMessages(): (
   query: string,
   threadID: string,
   onResultsReceived: (
     messages: $ReadOnlyArray<RawMessageInfo>,
     endReached: boolean,
     queryID: number,
     threadID: string,
   ) => mixed,
   queryID: number,
   timestampCursor?: ?number,
   messageIDCursor?: ?string,
 ) => void {
   const callSearchMessages = useSearchMessagesAction();
   const dispatchActionPromise = useDispatchActionPromise();
 
   return React.useCallback(
     (
       query,
       threadID,
       onResultsReceived,
       queryID,
       timestampCursor,
       messageIDCursor,
     ) => {
       const searchMessagesPromise = (async () => {
         if (query === '') {
           onResultsReceived([], true, queryID, threadID);
           return;
         }
         const { messages, endReached } = await callSearchMessages({
           query,
           threadID,
           timestampCursor,
           messageIDCursor,
         });
         onResultsReceived(messages, endReached, queryID, threadID);
       })();
 
       void dispatchActionPromise(
         searchMessagesActionTypes,
         searchMessagesPromise,
       );
     },
     [callSearchMessages, dispatchActionPromise],
   );
 }
 
 function useForwardLookupSearchText(originalText: string): string {
   const cacheContext = React.useContext(ENSCacheContext);
   const { ensCache } = cacheContext;
   const lowercaseText = originalText.toLowerCase();
 
   const [usernameToSearch, setUsernameToSearch] =
     React.useState<string>(lowercaseText);
 
   React.useEffect(() => {
     void (async () => {
       if (!ensCache || !isValidENSName(lowercaseText)) {
         setUsernameToSearch(lowercaseText);
         return;
       }
 
       const address = await ensCache.getAddressForName(lowercaseText);
       if (address) {
         setUsernameToSearch(address);
       } else {
         setUsernameToSearch(lowercaseText);
       }
     })();
   }, [ensCache, lowercaseText]);
 
   return usernameToSearch;
 }
 
 function useSearchUsers(
   usernameInputText: string,
 ): $ReadOnlyArray<GlobalAccountUserInfo> {
   const currentUserID = useSelector(
     state => state.currentUserInfo && state.currentUserInfo.id,
   );
   const forwardLookupSearchText = useForwardLookupSearchText(usernameInputText);
 
   const [searchResults, setSearchResults] = React.useState<
     $ReadOnlyArray<GlobalAccountUserInfo>,
   >([]);
   const setSearchResultsFromServer = React.useCallback(
     (userInfos: $ReadOnlyArray<GlobalAccountUserInfo>) => {
       setSearchResults(userInfos.filter(({ id }) => id !== currentUserID));
     },
     [currentUserID],
   );
 
   const callLegacyAshoatKeyserverSearchUsers =
     useLegacyAshoatKeyserverCall(searchUsers);
   const {
     connected: identitySearchSocketConnected,
     sendPrefixQuery: callIdentitySearchUsers,
   } = useIdentitySearch();
 
   const dispatchActionPromise = useDispatchActionPromise();
 
   React.useEffect(() => {
     if (forwardLookupSearchText.length === 0) {
       setSearchResults([]);
       return;
     }
     const searchUsersPromise = (async () => {
       if (usingCommServicesAccessToken && identitySearchSocketConnected) {
         try {
           const identitySearchResult = await callIdentitySearchUsers(
             forwardLookupSearchText,
           );
           const userInfos = identitySearchResult.map(user => ({
             id: user.userID,
             username: user.username,
             avatar: null,
           }));
           setSearchResultsFromServer(userInfos);
           return;
         } catch (err) {
           console.error(err);
         }
       }
       const { userInfos: keyserverSearchResult } =
         await callLegacyAshoatKeyserverSearchUsers(forwardLookupSearchText);
       setSearchResultsFromServer(keyserverSearchResult);
     })();
     void dispatchActionPromise(searchUsersActionTypes, searchUsersPromise);
   }, [
     setSearchResultsFromServer,
     callLegacyAshoatKeyserverSearchUsers,
     callIdentitySearchUsers,
     identitySearchSocketConnected,
     dispatchActionPromise,
     forwardLookupSearchText,
   ]);
   return searchResults;
 }
 
 function filterChatMessageInfosForSearch(
   chatMessageInfos: MessageListData,
   translatedSearchResults: $ReadOnlyArray<MessageInfo>,
 ): ?(ChatMessageInfoItem[]) {
   if (!chatMessageInfos) {
     return null;
   }
 
   const idSet = new Set(translatedSearchResults.map(messageID));
 
   const uniqueChatMessageInfoItemsMap = new Map<string, ChatMessageInfoItem>();
   for (const item of chatMessageInfos) {
     if (item.itemType !== 'message' || item.messageInfoType !== 'composable') {
       continue;
     }
     const id = messageID(item.messageInfo);
     if (idSet.has(id)) {
       uniqueChatMessageInfoItemsMap.set(id, item);
     }
   }
 
   const sortedChatMessageInfoItems: ChatMessageInfoItem[] = [];
   for (let i = 0; i < translatedSearchResults.length; i++) {
     const id = messageID(translatedSearchResults[i]);
     const match = uniqueChatMessageInfoItemsMap.get(id);
     if (match) {
       sortedChatMessageInfoItems.push(match);
     }
   }
   return sortedChatMessageInfoItems;
 }
 
 export {
   usePotentialMemberItems,
   notFriendNotice,
   useSearchMessages,
   useSearchUsers,
   filterChatMessageInfosForSearch,
   useForwardLookupSearchText,
 };
diff --git a/lib/shared/thread-actions-utils.js b/lib/shared/thread-actions-utils.js
index f5e4c23c4..f6e579578 100644
--- a/lib/shared/thread-actions-utils.js
+++ b/lib/shared/thread-actions-utils.js
@@ -1,194 +1,194 @@
 // @flow
 
 import invariant from 'invariant';
 
 import {
   threadIsPending,
   threadOtherMembers,
   pendingThreadType,
-  userSupportsThickThreads,
+  userHasDeviceList,
 } from './thread-utils.js';
 import {
   newThreadActionTypes,
   removeUsersFromThreadActionTypes,
   type RemoveUsersFromThreadInput,
 } from '../actions/thread-actions.js';
 import type { AuxUserInfos } from '../types/aux-user-types.js';
 import type { CalendarQuery } from '../types/entry-types.js';
 import type {
   RelativeMemberInfo,
   ThreadInfo,
 } from '../types/minimally-encoded-thread-permissions-types.js';
 import {
   threadTypes,
   assertThinThreadType,
   assertThickThreadType,
   threadTypeIsThick,
 } from '../types/thread-types-enum.js';
 import type { ThreadType } from '../types/thread-types-enum.js';
 import type {
   ChangeThreadSettingsPayload,
   ClientNewThinThreadRequest,
   NewThickThreadRequest,
   NewThreadResult,
 } from '../types/thread-types.js';
 import type { DispatchActionPromise } from '../utils/redux-promise-utils.js';
 
 function removeMemberFromThread(
   threadInfo: ThreadInfo,
   memberInfo: RelativeMemberInfo,
   dispatchActionPromise: DispatchActionPromise,
   removeUserFromThreadServerCall: (
     input: RemoveUsersFromThreadInput,
   ) => Promise<ChangeThreadSettingsPayload>,
 ) {
   const customKeyName = `${removeUsersFromThreadActionTypes.started}:${memberInfo.id}`;
   void dispatchActionPromise(
     removeUsersFromThreadActionTypes,
     removeUserFromThreadServerCall({
       threadID: threadInfo.id,
       memberIDs: [memberInfo.id],
     }),
     { customKeyName },
   );
 }
 
 type CreateRealThreadParameters = {
   +threadInfo: ThreadInfo,
   +dispatchActionPromise: DispatchActionPromise,
   +createNewThinThread: ClientNewThinThreadRequest => Promise<NewThreadResult>,
   +createNewThickThread: NewThickThreadRequest => Promise<string>,
   +sourceMessageID: ?string,
   +viewerID: ?string,
   +handleError?: () => mixed,
   +calendarQuery: CalendarQuery,
   +usingOlmViaTunnelbrokerForDMs: boolean,
   +auxUserInfos: AuxUserInfos,
 };
 
 async function createRealThreadFromPendingThread({
   threadInfo,
   dispatchActionPromise,
   createNewThinThread,
   createNewThickThread,
   sourceMessageID,
   viewerID,
   calendarQuery,
   usingOlmViaTunnelbrokerForDMs,
   auxUserInfos,
 }: CreateRealThreadParameters): Promise<{
   +threadID: string,
   +threadType: ThreadType,
 }> {
   if (!threadIsPending(threadInfo.id)) {
     return {
       threadID: threadInfo.id,
       threadType: threadInfo.type,
     };
   }
 
   let newThreadID;
   let newThreadType = threadInfo.type;
 
   const otherMemberIDs = threadOtherMembers(threadInfo.members, viewerID).map(
     member => member.id,
   );
   let resultPromise;
   if (threadInfo.type === threadTypes.SIDEBAR) {
     invariant(
       sourceMessageID,
       'sourceMessageID should be set when creating a sidebar',
     );
     invariant(
       threadInfo.parentThreadID,
       'parentThreadID should be set when creating a sidebar',
     );
     resultPromise = createNewThinThread({
       type: threadTypes.SIDEBAR,
       initialMemberIDs: otherMemberIDs,
       color: threadInfo.color,
       sourceMessageID,
       parentThreadID: threadInfo.parentThreadID,
       name: threadInfo.name,
       calendarQuery,
     });
     void dispatchActionPromise(newThreadActionTypes, resultPromise);
     const result = await resultPromise;
     newThreadID = result.newThreadID;
   } else if (threadInfo.type === threadTypes.THICK_SIDEBAR) {
     invariant(
       sourceMessageID,
       'sourceMessageID should be set when creating a sidebar',
     );
     invariant(
       threadInfo.parentThreadID,
       'parentThreadID should be set when creating a sidebar',
     );
     newThreadID = await createNewThickThread({
       type: threadTypes.THICK_SIDEBAR,
       initialMemberIDs: otherMemberIDs,
       color: threadInfo.color,
       sourceMessageID,
       parentThreadID: threadInfo.parentThreadID,
       name: threadInfo.name,
     });
   } else {
     invariant(
       otherMemberIDs.length > 0,
       'otherMemberIDs should not be empty for threads',
     );
     const allUsersSupportThickThreads = otherMemberIDs.every(memberID =>
-      userSupportsThickThreads(memberID, auxUserInfos),
+      userHasDeviceList(memberID, auxUserInfos),
     );
     if (threadTypeIsThick(threadInfo.type) && allUsersSupportThickThreads) {
       const type = assertThickThreadType(
         pendingThreadType(
           otherMemberIDs.length,
           'thick',
           usingOlmViaTunnelbrokerForDMs,
         ),
       );
 
       invariant(
         type !== 16,
         // Flow does not recognize that threadTypes.THICK_SIDEBAR is 16
         'pendingThreadType should not return THICK_SIDEBAR',
       );
       newThreadID = await createNewThickThread({
         type,
         initialMemberIDs: otherMemberIDs,
         color: threadInfo.color,
       });
       newThreadType = type;
     } else {
       const type = assertThinThreadType(
         pendingThreadType(
           otherMemberIDs.length,
           'thin',
           usingOlmViaTunnelbrokerForDMs,
         ),
       );
 
       invariant(
         type !== 5, // Flow does not recognize that threadTypes.SIDEBAR is 5
         'pendingThreadType should not return SIDEBAR',
       );
       resultPromise = createNewThinThread({
         type,
         initialMemberIDs: otherMemberIDs,
         color: threadInfo.color,
         calendarQuery,
       });
       void dispatchActionPromise(newThreadActionTypes, resultPromise);
       const result = await resultPromise;
       newThreadID = result.newThreadID;
       newThreadType = type;
     }
   }
   return {
     threadID: newThreadID,
     threadType: newThreadType,
   };
 }
 
 export { removeMemberFromThread, createRealThreadFromPendingThread };
diff --git a/lib/shared/thread-utils.js b/lib/shared/thread-utils.js
index d9fc959cd..5be037398 100644
--- a/lib/shared/thread-utils.js
+++ b/lib/shared/thread-utils.js
@@ -1,1878 +1,1878 @@
 // @flow
 
 import invariant from 'invariant';
 import _find from 'lodash/fp/find.js';
 import _keyBy from 'lodash/fp/keyBy.js';
 import _mapValues from 'lodash/fp/mapValues.js';
 import _omit from 'lodash/fp/omit.js';
 import _omitBy from 'lodash/fp/omitBy.js';
 import * as React from 'react';
 
 import { getUserAvatarForThread } from './avatar-utils.js';
 import { generatePendingThreadColor } from './color-utils.js';
 import { extractUserMentionsFromText } from './mention-utils.js';
 import { relationshipBlockedInEitherDirection } from './relationship-utils.js';
 import ashoat from '../facts/ashoat.js';
 import genesis from '../facts/genesis.js';
 import { useLoggedInUserInfo } from '../hooks/account-hooks.js';
 import { useAllowOlmViaTunnelbrokerForDMs } from '../hooks/flag-hooks.js';
 import { extractKeyserverIDFromIDOptional } from '../keyserver-conn/keyserver-call-utils.js';
 import {
   hasPermission,
   permissionsToBitmaskHex,
   threadPermissionsFromBitmaskHex,
 } from '../permissions/minimally-encoded-thread-permissions.js';
 import { specialRoles } from '../permissions/special-roles.js';
 import type { SpecialRole } from '../permissions/special-roles.js';
 import {
   permissionLookup,
   getAllThreadPermissions,
   makePermissionsBlob,
 } from '../permissions/thread-permissions.js';
 import type { ChatThreadItem } from '../selectors/chat-selectors.js';
 import {
   threadInfoSelector,
   pendingToRealizedThreadIDsSelector,
   threadInfosSelectorForThreadType,
   onScreenThreadInfos,
 } from '../selectors/thread-selectors.js';
 import {
   getRelativeMemberInfos,
   usersWithPersonalThreadSelector,
 } from '../selectors/user-selectors.js';
 import type { AuxUserInfos } from '../types/aux-user-types.js';
 import type {
   RelativeMemberInfo,
   RawThreadInfo,
   MemberInfoWithPermissions,
   RoleInfo,
   ThreadInfo,
   MinimallyEncodedThickMemberInfo,
   ThinRawThreadInfo,
 } from '../types/minimally-encoded-thread-permissions-types.js';
 import {
   decodeMinimallyEncodedRoleInfo,
   minimallyEncodeMemberInfo,
   minimallyEncodeRawThreadInfoWithMemberPermissions,
   minimallyEncodeRoleInfo,
   minimallyEncodeThreadCurrentUserInfo,
 } from '../types/minimally-encoded-thread-permissions-types.js';
 import { userRelationshipStatus } from '../types/relationship-types.js';
 import { defaultThreadSubscription } from '../types/subscription-types.js';
 import {
   threadPermissionPropagationPrefixes,
   threadPermissions,
   type ThreadPermission,
   type ThreadPermissionsInfo,
   type ThreadRolePermissionsBlob,
   type UserSurfacedPermission,
   threadPermissionFilterPrefixes,
   threadPermissionsDisabledByBlock,
   type ThreadPermissionNotAffectedByBlock,
 } from '../types/thread-permission-types.js';
 import {
   type ThreadType,
   threadTypes,
   threadTypeIsCommunityRoot,
   assertThreadType,
   threadTypeIsThick,
   assertThinThreadType,
   assertThickThreadType,
   threadTypeIsSidebar,
   threadTypeIsPrivate,
   threadTypeIsPersonal,
 } from '../types/thread-types-enum.js';
 import type {
   LegacyRawThreadInfo,
   ClientLegacyRoleInfo,
   ServerThreadInfo,
   ThickMemberInfo,
   UserProfileThreadInfo,
   MixedRawThreadInfos,
   LegacyThinRawThreadInfo,
   ThreadTimestamps,
 } from '../types/thread-types.js';
 import { updateTypes } from '../types/update-types-enum.js';
 import { type ClientUpdateInfo } from '../types/update-types.js';
 import type {
   GlobalAccountUserInfo,
   UserInfos,
   AccountUserInfo,
   LoggedInUserInfo,
   UserInfo,
 } from '../types/user-types.js';
 import {
   ET,
   type ThreadEntity,
   type UserEntity,
 } from '../utils/entity-text.js';
 import {
   stripMemberPermissionsFromRawThreadInfo,
   type ThinRawThreadInfoWithPermissions,
 } from '../utils/member-info-utils.js';
 import { entries, values } from '../utils/objects.js';
 import { useSelector } from '../utils/redux-utils.js';
 import { userSurfacedPermissionsFromRolePermissions } from '../utils/role-utils.js';
 import { firstLine } from '../utils/string-utils.js';
 import {
   pendingThreadIDRegex,
   pendingThickSidebarURLPrefix,
   pendingSidebarURLPrefix,
 } from '../utils/validation-utils.js';
 
 function threadHasPermission(
   threadInfo: ?(ThreadInfo | LegacyRawThreadInfo | RawThreadInfo),
   permission: ThreadPermissionNotAffectedByBlock,
 ): boolean {
   if (!threadInfo) {
     return false;
   }
   invariant(
     !permissionsDisabledByBlock.has(permission) || threadInfo?.uiName,
     `${permission} can be disabled by a block, but threadHasPermission can't ` +
       'check for a block on RawThreadInfo. Please pass in ThreadInfo instead!',
   );
   if (threadInfo.minimallyEncoded) {
     return hasPermission(threadInfo.currentUser.permissions, permission);
   }
   return permissionLookup(threadInfo.currentUser.permissions, permission);
 }
 
 type CommunityRootMembersToRoleType = {
   +[threadID: ?string]: {
     +[memberID: string]: ?RoleInfo,
   },
 };
 function useCommunityRootMembersToRole(
   threadInfos: $ReadOnlyArray<RawThreadInfo | ThreadInfo>,
 ): CommunityRootMembersToRoleType {
   const communityRootMembersToRole = React.useMemo(() => {
     const communityThreadInfos = threadInfos.filter(threadInfo =>
       threadTypeIsCommunityRoot(threadInfo.type),
     );
 
     if (communityThreadInfos.length === 0) {
       return {};
     }
 
     const communityRoots = _keyBy('id')(communityThreadInfos);
     return _mapValues((threadInfo: ThreadInfo) => {
       const keyedMembers = _keyBy('id')(threadInfo.members);
       const keyedMembersToRole = _mapValues(
         (member: MemberInfoWithPermissions | RelativeMemberInfo) => {
           return member.role ? threadInfo.roles[member.role] : null;
         },
       )(keyedMembers);
       return keyedMembersToRole;
     })(communityRoots);
   }, [threadInfos]);
 
   return communityRootMembersToRole;
 }
 
 function useThreadsWithPermission(
   threadInfos: $ReadOnlyArray<ThreadInfo>,
   permission: ThreadPermission,
 ): $ReadOnlyArray<ThreadInfo> {
   const loggedInUserInfo = useLoggedInUserInfo();
   const userInfos = useSelector(state => state.userStore.userInfos);
   const allThreadInfos = useSelector(state => state.threadStore.threadInfos);
   const allThreadInfosArray = React.useMemo(
     () => values(allThreadInfos),
     [allThreadInfos],
   );
 
   const communityRootMembersToRole =
     useCommunityRootMembersToRole(allThreadInfosArray);
 
   return React.useMemo(() => {
     return threadInfos.filter((threadInfo: ThreadInfo) => {
       const membersToRole = communityRootMembersToRole[threadInfo.id];
       const memberHasAdminRole = threadMembersWithoutAddedAdmin(
         threadInfo,
       ).some(member => roleIsAdminRole(membersToRole?.[member.id]));
 
       if (memberHasAdminRole || !loggedInUserInfo) {
         return hasPermission(threadInfo.currentUser.permissions, permission);
       }
 
       const threadFrozen = threadIsWithBlockedUserOnlyWithoutAdminRoleCheck(
         threadInfo,
         loggedInUserInfo.id,
         userInfos,
         false,
       );
 
       const permissions = threadFrozen
         ? filterOutDisabledPermissions(threadInfo.currentUser.permissions)
         : threadInfo.currentUser.permissions;
 
       return hasPermission(permissions, permission);
     });
   }, [
     threadInfos,
     communityRootMembersToRole,
     loggedInUserInfo,
     userInfos,
     permission,
   ]);
 }
 
 function useThreadHasPermission(
   threadInfo: ?ThreadInfo,
   permission: ThreadPermission,
 ): boolean {
   const threads = useThreadsWithPermission(
     threadInfo ? [threadInfo] : [],
     permission,
   );
   return threads.length === 1;
 }
 
 function viewerIsMember(
   threadInfo: ?(ThreadInfo | LegacyRawThreadInfo | RawThreadInfo),
 ): boolean {
   return !!(
     threadInfo &&
     threadInfo.currentUser.role !== null &&
     threadInfo.currentUser.role !== undefined
   );
 }
 
 function isMemberActive(
   memberInfo: MemberInfoWithPermissions | MinimallyEncodedThickMemberInfo,
 ): boolean {
   const role = memberInfo.role;
   return role !== null && role !== undefined;
 }
 
 function threadIsInHome(threadInfo: ?(RawThreadInfo | ThreadInfo)): boolean {
   return !!(threadInfo && threadInfo.currentUser.subscription.home);
 }
 
 // Can have messages
 function threadInChatList(
   threadInfo: ?(LegacyRawThreadInfo | RawThreadInfo | ThreadInfo),
 ): boolean {
   return (
     viewerIsMember(threadInfo) &&
     threadHasPermission(threadInfo, threadPermissions.VISIBLE)
   );
 }
 
 function useIsThreadInChatList(threadInfo: ?ThreadInfo): boolean {
   const threadIsVisible = useThreadHasPermission(
     threadInfo,
     threadPermissions.VISIBLE,
   );
   return viewerIsMember(threadInfo) && threadIsVisible;
 }
 
 function useThreadsInChatList(
   threadInfos: $ReadOnlyArray<ThreadInfo>,
 ): $ReadOnlyArray<ThreadInfo> {
   const visibleThreads = useThreadsWithPermission(
     threadInfos,
     threadPermissions.VISIBLE,
   );
   return React.useMemo(
     () => visibleThreads.filter(viewerIsMember),
     [visibleThreads],
   );
 }
 
 function threadIsTopLevel(threadInfo: ?(RawThreadInfo | ThreadInfo)): boolean {
   return threadInChatList(threadInfo) && threadIsChannel(threadInfo);
 }
 
 function threadIsChannel(threadInfo: ?(RawThreadInfo | ThreadInfo)): boolean {
   return !!(threadInfo && !threadTypeIsSidebar(threadInfo.type));
 }
 
 function threadIsSidebar(threadInfo: ?(RawThreadInfo | ThreadInfo)): boolean {
   return !!(threadInfo && threadTypeIsSidebar(threadInfo.type));
 }
 
 function threadInBackgroundChatList(
   threadInfo: ?(RawThreadInfo | ThreadInfo),
 ): boolean {
   return threadInChatList(threadInfo) && !threadIsInHome(threadInfo);
 }
 
 function threadInHomeChatList(
   threadInfo: ?(RawThreadInfo | ThreadInfo),
 ): boolean {
   return threadInChatList(threadInfo) && threadIsInHome(threadInfo);
 }
 
 // Can have Calendar entries,
 // does appear as a top-level entity in the thread list
 function threadInFilterList(
   threadInfo: ?(LegacyRawThreadInfo | RawThreadInfo | ThreadInfo),
 ): boolean {
   return (
     threadInChatList(threadInfo) &&
     !!threadInfo &&
     !threadTypeIsSidebar(threadInfo.type)
   );
 }
 
 function userIsMember(
   threadInfo: ?(RawThreadInfo | ThreadInfo),
   userID: string,
 ): boolean {
   if (!threadInfo) {
     return false;
   }
   if (threadInfo.id === genesis().id) {
     return true;
   }
   return threadInfo.members.some(member => member.id === userID && member.role);
 }
 
 function threadActualMembers(
   memberInfos: $ReadOnlyArray<MemberInfoWithPermissions | RelativeMemberInfo>,
 ): $ReadOnlyArray<string> {
   return memberInfos
     .filter(memberInfo => memberInfo.role)
     .map(memberInfo => memberInfo.id);
 }
 
 type MemberIDAndRole = {
   +id: string,
   +role: ?string,
   ...
 };
 function threadOtherMembers<T: MemberIDAndRole>(
   memberInfos: $ReadOnlyArray<T>,
   viewerID: ?string,
 ): $ReadOnlyArray<T> {
   return memberInfos.filter(
     memberInfo => memberInfo.role && memberInfo.id !== viewerID,
   );
 }
 
 function threadMembersWithoutAddedAdmin<
   T: LegacyRawThreadInfo | RawThreadInfo | ThreadInfo,
 >(threadInfo: T): $PropertyType<T, 'members'> {
   if (threadInfo.community !== genesis().id) {
     return threadInfo.members;
   }
   const adminID = extractKeyserverIDFromIDOptional(threadInfo.id);
 
   return threadInfo.members.filter(
     member => member.id !== adminID || member.role,
   );
 }
 
 function threadIsGroupChat(threadInfo: ThreadInfo): boolean {
   return threadInfo.members.length > 2;
 }
 
 function threadOrParentThreadIsGroupChat(
   threadInfo: LegacyRawThreadInfo | RawThreadInfo | ThreadInfo,
 ) {
   return threadMembersWithoutAddedAdmin(threadInfo).length > 2;
 }
 
 function threadIsPending(threadID: ?string): boolean {
   return !!threadID?.startsWith('pending');
 }
 
 function threadIsPendingSidebar(threadID: ?string): boolean {
   return (
     !!threadID?.startsWith(`pending/${pendingSidebarURLPrefix}/`) ||
     !!threadID?.startsWith(`pending/${pendingThickSidebarURLPrefix}`)
   );
 }
 
 function getSingleOtherUser(
   threadInfo: LegacyRawThreadInfo | RawThreadInfo | ThreadInfo,
   viewerID: ?string,
 ): ?string {
   if (!viewerID) {
     return undefined;
   }
   const otherMembers = threadOtherMembers(threadInfo.members, viewerID);
   if (otherMembers.length !== 1) {
     return undefined;
   }
   return otherMembers[0].id;
 }
 
 function getPendingThreadID(
   threadType: ThreadType,
   memberIDs: $ReadOnlyArray<string>,
   sourceMessageID: ?string,
 ): string {
   let pendingThreadKey;
   if (sourceMessageID && threadTypeIsThick(threadType)) {
     pendingThreadKey = `${pendingThickSidebarURLPrefix}/${sourceMessageID}`;
   } else if (sourceMessageID) {
     pendingThreadKey = `${pendingSidebarURLPrefix}/${sourceMessageID}`;
   } else {
     pendingThreadKey = [...memberIDs].sort().join('+');
   }
 
   const pendingThreadTypeString = sourceMessageID ? '' : `type${threadType}/`;
   return `pending/${pendingThreadTypeString}${pendingThreadKey}`;
 }
 
 type PendingThreadIDContents = {
   +threadType: ThreadType,
   +memberIDs: $ReadOnlyArray<string>,
   +sourceMessageID: ?string,
 };
 
 function parsePendingThreadID(
   pendingThreadID: string,
 ): ?PendingThreadIDContents {
   const pendingRegex = new RegExp(`^${pendingThreadIDRegex}$`);
   const pendingThreadIDMatches = pendingRegex.exec(pendingThreadID);
   if (!pendingThreadIDMatches) {
     return null;
   }
 
   const [threadTypeString, threadKey] = pendingThreadIDMatches[1].split('/');
   let threadType;
   if (threadTypeString === pendingThickSidebarURLPrefix) {
     threadType = threadTypes.THICK_SIDEBAR;
   } else if (threadTypeString === pendingSidebarURLPrefix) {
     threadType = threadTypes.SIDEBAR;
   } else {
     threadType = assertThreadType(Number(threadTypeString.replace('type', '')));
   }
 
   const threadTypeStringIsSidebar =
     threadTypeString === pendingSidebarURLPrefix ||
     threadTypeString === pendingThickSidebarURLPrefix;
   const memberIDs = threadTypeStringIsSidebar ? [] : threadKey.split('+');
   const sourceMessageID = threadTypeStringIsSidebar ? threadKey : null;
   return {
     threadType,
     memberIDs,
     sourceMessageID,
   };
 }
 
 type UserIDAndUsername = {
   +id: string,
   +username: ?string,
   ...
 };
 type CreatePendingThreadArgs = {
   +viewerID: string,
   +threadType: ThreadType,
   +members: $ReadOnlyArray<UserIDAndUsername>,
   +parentThreadInfo?: ?ThreadInfo,
   +threadColor?: ?string,
   +name?: ?string,
   +sourceMessageID?: string,
 };
 
 function createPendingThread({
   viewerID,
   threadType,
   members,
   parentThreadInfo,
   threadColor,
   name,
   sourceMessageID,
 }: CreatePendingThreadArgs): ThreadInfo {
   const now = Date.now();
   if (!members.some(member => member.id === viewerID)) {
     throw new Error(
       'createPendingThread should be called with the viewer as a member',
     );
   }
 
   const memberIDs = members.map(member => member.id);
   const threadID = getPendingThreadID(threadType, memberIDs, sourceMessageID);
 
   const permissions: ThreadRolePermissionsBlob = {
     [threadPermissions.KNOW_OF]: true,
     [threadPermissions.VISIBLE]: true,
     [threadPermissions.VOICED]: true,
   };
 
   const membershipPermissions = getAllThreadPermissions(
     makePermissionsBlob(permissions, null, threadID, threadType),
     threadID,
   );
   const role: RoleInfo = {
     ...minimallyEncodeRoleInfo({
       id: `${threadID}/role`,
       name: 'Members',
       permissions,
       isDefault: true,
     }),
     specialRole: specialRoles.DEFAULT_ROLE,
   };
 
   let rawThreadInfo: RawThreadInfo;
   if (threadTypeIsThick(threadType)) {
     const thickThreadType = assertThickThreadType(threadType);
     rawThreadInfo = {
       minimallyEncoded: true,
       thick: true,
       id: threadID,
       type: thickThreadType,
       name: name ?? null,
       description: null,
       color: threadColor ?? generatePendingThreadColor(memberIDs),
       creationTime: now,
       parentThreadID: parentThreadInfo?.id ?? null,
       containingThreadID: getContainingThreadID(
         parentThreadInfo,
         thickThreadType,
       ),
       members: members.map(member =>
         minimallyEncodeMemberInfo<ThickMemberInfo>({
           id: member.id,
           role: role.id,
           permissions: membershipPermissions,
           isSender: false,
           subscription: defaultThreadSubscription,
         }),
       ),
       roles: {
         [role.id]: role,
       },
       currentUser: minimallyEncodeThreadCurrentUserInfo({
         role: role.id,
         permissions: membershipPermissions,
         subscription: defaultThreadSubscription,
         unread: false,
       }),
       repliesCount: 0,
       sourceMessageID,
       pinnedCount: 0,
       timestamps: createThreadTimestamps(now, memberIDs),
     };
   } else {
     const thinThreadType = assertThinThreadType(threadType);
     rawThreadInfo = {
       minimallyEncoded: true,
       id: threadID,
       type: thinThreadType,
       name: name ?? null,
       description: null,
       color: threadColor ?? generatePendingThreadColor(memberIDs),
       creationTime: now,
       parentThreadID: parentThreadInfo?.id ?? null,
       containingThreadID: getContainingThreadID(
         parentThreadInfo,
         thinThreadType,
       ),
       community: getCommunity(parentThreadInfo),
       members: members.map(member => ({
         id: member.id,
         role: role.id,
         minimallyEncoded: true,
         isSender: false,
       })),
       roles: {
         [role.id]: role,
       },
       currentUser: minimallyEncodeThreadCurrentUserInfo({
         role: role.id,
         permissions: membershipPermissions,
         subscription: defaultThreadSubscription,
         unread: false,
       }),
       repliesCount: 0,
       sourceMessageID,
       pinnedCount: 0,
     };
   }
 
   const userInfos: { [string]: UserInfo } = {};
   for (const member of members) {
     const { id, username } = member;
     userInfos[id] = { id, username };
   }
 
   return threadInfoFromRawThreadInfo(rawThreadInfo, viewerID, userInfos);
 }
 
 type PendingPersonalThread = {
   +threadInfo: ThreadInfo,
   +pendingPersonalThreadUserInfo: UserInfo,
 };
 
 function createPendingPersonalThread(
   loggedInUserInfo: LoggedInUserInfo,
   userID: string,
   username: ?string,
   allowOlmViaTunnelbrokerForDMs: boolean,
 ): PendingPersonalThread {
   const pendingPersonalThreadUserInfo = {
     id: userID,
     username: username,
   };
 
   const threadType = allowOlmViaTunnelbrokerForDMs
     ? threadTypes.PERSONAL
     : threadTypes.GENESIS_PERSONAL;
 
   const threadInfo = createPendingThread({
     viewerID: loggedInUserInfo.id,
     threadType,
     members: [loggedInUserInfo, pendingPersonalThreadUserInfo],
   });
 
   return { threadInfo, pendingPersonalThreadUserInfo };
 }
 
 function createPendingThreadItem(
   loggedInUserInfo: LoggedInUserInfo,
   user: UserIDAndUsername,
   allowOlmViaTunnelbrokerForDMs: boolean,
 ): ChatThreadItem {
   const { threadInfo, pendingPersonalThreadUserInfo } =
     createPendingPersonalThread(
       loggedInUserInfo,
       user.id,
       user.username,
       allowOlmViaTunnelbrokerForDMs,
     );
 
   return {
     type: 'chatThreadItem',
     threadInfo,
     mostRecentMessageInfo: null,
     mostRecentNonLocalMessage: null,
     lastUpdatedTime: threadInfo.creationTime,
     lastUpdatedTimeIncludingSidebars: threadInfo.creationTime,
     sidebars: [],
     pendingPersonalThreadUserInfo,
   };
 }
 
 // Returns map from lowercase username to AccountUserInfo
 function memberLowercaseUsernameMap(
   members: $ReadOnlyArray<RelativeMemberInfo>,
 ): Map<string, AccountUserInfo> {
   const memberMap = new Map<string, AccountUserInfo>();
   for (const member of members) {
     const { id, role, username } = member;
     if (!role || !username) {
       continue;
     }
     memberMap.set(username.toLowerCase(), { id, username });
   }
   return memberMap;
 }
 
 // Returns map from user ID to AccountUserInfo
 function extractMentionedMembers(
   text: string,
   threadInfo: ThreadInfo,
 ): Map<string, AccountUserInfo> {
   const memberMap = memberLowercaseUsernameMap(threadInfo.members);
   const mentions = extractUserMentionsFromText(text);
 
   const mentionedMembers = new Map<string, AccountUserInfo>();
   for (const mention of mentions) {
     const userInfo = memberMap.get(mention.toLowerCase());
     if (userInfo) {
       mentionedMembers.set(userInfo.id, userInfo);
     }
   }
   return mentionedMembers;
 }
 
 // When a member of the parent is mentioned in a sidebar,
 // they will be automatically added to that sidebar
 function extractNewMentionedParentMembers(
   messageText: string,
   threadInfo: ThreadInfo,
   parentThreadInfo: ThreadInfo,
 ): AccountUserInfo[] {
   const mentionedMembersOfParent = extractMentionedMembers(
     messageText,
     parentThreadInfo,
   );
   for (const member of threadInfo.members) {
     if (member.role) {
       mentionedMembersOfParent.delete(member.id);
     }
   }
   return [...mentionedMembersOfParent.values()];
 }
 
 function pendingThreadType(
   numberOfOtherMembers: number,
   thickOrThin: 'thick' | 'thin',
   usingOlmViaTunnelbrokerForDMs: boolean,
 ): 4 | 6 | 7 | 13 | 14 | 15 {
   if (usingOlmViaTunnelbrokerForDMs && thickOrThin === 'thick') {
     if (numberOfOtherMembers === 0) {
       return threadTypes.PRIVATE;
     } else if (numberOfOtherMembers === 1) {
       return threadTypes.PERSONAL;
     } else {
       return threadTypes.LOCAL;
     }
   } else {
     if (numberOfOtherMembers === 0) {
       return threadTypes.GENESIS_PRIVATE;
     } else if (numberOfOtherMembers === 1) {
       return threadTypes.GENESIS_PERSONAL;
     } else {
       return threadTypes.COMMUNITY_SECRET_SUBTHREAD;
     }
   }
 }
 
 function threadTypeCanBePending(threadType: ThreadType): boolean {
   return (
     threadType === threadTypes.GENESIS_PERSONAL ||
     threadType === threadTypes.COMMUNITY_SECRET_SUBTHREAD ||
     threadType === threadTypes.SIDEBAR ||
     threadType === threadTypes.GENESIS_PRIVATE ||
     threadType === threadTypes.PERSONAL ||
     threadType === threadTypes.LOCAL ||
     threadType === threadTypes.THICK_SIDEBAR ||
     threadType === threadTypes.PRIVATE
   );
 }
 
 type RawThreadInfoOptions = {
   +filterThreadEditAvatarPermission?: boolean,
   +excludePinInfo?: boolean,
   +filterManageInviteLinksPermission?: boolean,
   +filterVoicedInAnnouncementChannelsPermission?: boolean,
   +minimallyEncodePermissions?: boolean,
   +includeSpecialRoleFieldInRoles?: boolean,
   +allowAddingUsersToCommunityRoot?: boolean,
   +filterManageFarcasterChannelTagsPermission?: boolean,
   +stripMemberPermissions?: boolean,
 };
 
 function rawThreadInfoFromServerThreadInfo(
   serverThreadInfo: ServerThreadInfo,
   viewerID: string,
   options?: RawThreadInfoOptions,
 ): ?LegacyThinRawThreadInfo | ?ThinRawThreadInfo {
   const filterThreadEditAvatarPermission =
     options?.filterThreadEditAvatarPermission;
   const excludePinInfo = options?.excludePinInfo;
   const filterManageInviteLinksPermission =
     options?.filterManageInviteLinksPermission;
   const filterVoicedInAnnouncementChannelsPermission =
     options?.filterVoicedInAnnouncementChannelsPermission;
   const shouldMinimallyEncodePermissions = options?.minimallyEncodePermissions;
   const shouldIncludeSpecialRoleFieldInRoles =
     options?.includeSpecialRoleFieldInRoles;
   const allowAddingUsersToCommunityRoot =
     options?.allowAddingUsersToCommunityRoot;
   const filterManageFarcasterChannelTagsPermission =
     options?.filterManageFarcasterChannelTagsPermission;
   const stripMemberPermissions = options?.stripMemberPermissions;
 
   const filterThreadPermissions = (
     innerThreadPermissions: ThreadPermissionsInfo,
   ) => {
     if (
       allowAddingUsersToCommunityRoot &&
       (serverThreadInfo.type === threadTypes.COMMUNITY_ANNOUNCEMENT_ROOT ||
         serverThreadInfo.type === threadTypes.COMMUNITY_ROOT)
     ) {
       innerThreadPermissions = {
         ...innerThreadPermissions,
         [threadPermissions.ADD_MEMBERS]: {
           value: true,
           source: serverThreadInfo.id,
         },
       };
     }
     return _omitBy(
       (v, k) =>
         (filterThreadEditAvatarPermission &&
           [
             threadPermissions.EDIT_THREAD_AVATAR,
             threadPermissionPropagationPrefixes.DESCENDANT +
               threadPermissions.EDIT_THREAD_AVATAR,
           ].includes(k)) ||
         (excludePinInfo &&
           [
             threadPermissions.MANAGE_PINS,
             threadPermissionPropagationPrefixes.DESCENDANT +
               threadPermissions.MANAGE_PINS,
           ].includes(k)) ||
         (filterManageInviteLinksPermission &&
           [threadPermissions.MANAGE_INVITE_LINKS].includes(k)) ||
         (filterVoicedInAnnouncementChannelsPermission &&
           [
             threadPermissions.VOICED_IN_ANNOUNCEMENT_CHANNELS,
             threadPermissionPropagationPrefixes.DESCENDANT +
               threadPermissionFilterPrefixes.TOP_LEVEL +
               threadPermissions.VOICED_IN_ANNOUNCEMENT_CHANNELS,
           ].includes(k)) ||
         (filterManageFarcasterChannelTagsPermission &&
           [threadPermissions.MANAGE_FARCASTER_CHANNEL_TAGS].includes(k)),
     )(innerThreadPermissions);
   };
 
   const members = [];
   let currentUser;
   for (const serverMember of serverThreadInfo.members) {
     if (
       serverThreadInfo.id === genesis().id &&
       serverMember.id !== viewerID &&
       serverMember.id !== ashoat.id
     ) {
       continue;
     }
 
     const memberPermissions = filterThreadPermissions(serverMember.permissions);
 
     members.push({
       id: serverMember.id,
       role: serverMember.role,
       permissions: memberPermissions,
       isSender: serverMember.isSender,
     });
     if (serverMember.id === viewerID) {
       currentUser = {
         role: serverMember.role,
         permissions: memberPermissions,
         subscription: serverMember.subscription,
         unread: serverMember.unread,
       };
     }
   }
 
   let currentUserPermissions;
   if (currentUser) {
     currentUserPermissions = currentUser.permissions;
   } else {
     currentUserPermissions = filterThreadPermissions(
       getAllThreadPermissions(null, serverThreadInfo.id),
     );
     currentUser = {
       role: null,
       permissions: currentUserPermissions,
       subscription: defaultThreadSubscription,
       unread: null,
     };
   }
   if (!permissionLookup(currentUserPermissions, threadPermissions.KNOW_OF)) {
     return null;
   }
 
   const rolesWithFilteredThreadPermissions = _mapValues(role => ({
     ...role,
     permissions: filterThreadPermissions(role.permissions),
   }))(serverThreadInfo.roles);
 
   const rolesWithoutSpecialRoleField = _mapValues(role => {
     const { specialRole, ...roleSansSpecialRole } = role;
     return roleSansSpecialRole;
   })(rolesWithFilteredThreadPermissions);
 
   let rawThreadInfo: any = {
     id: serverThreadInfo.id,
     type: serverThreadInfo.type,
     name: serverThreadInfo.name,
     description: serverThreadInfo.description,
     color: serverThreadInfo.color,
     creationTime: serverThreadInfo.creationTime,
     parentThreadID: serverThreadInfo.parentThreadID,
     members,
     roles: rolesWithoutSpecialRoleField,
     currentUser,
     repliesCount: serverThreadInfo.repliesCount,
     containingThreadID: serverThreadInfo.containingThreadID,
     community: serverThreadInfo.community,
   };
   const sourceMessageID = serverThreadInfo.sourceMessageID;
   if (sourceMessageID) {
     rawThreadInfo = { ...rawThreadInfo, sourceMessageID };
   }
   if (serverThreadInfo.avatar) {
     rawThreadInfo = { ...rawThreadInfo, avatar: serverThreadInfo.avatar };
   }
   if (!excludePinInfo) {
     rawThreadInfo = {
       ...rawThreadInfo,
       pinnedCount: serverThreadInfo.pinnedCount,
     };
   }
 
   if (!shouldMinimallyEncodePermissions) {
     return rawThreadInfo;
   }
 
   const minimallyEncodedRawThreadInfoWithMemberPermissions =
     minimallyEncodeRawThreadInfoWithMemberPermissions(rawThreadInfo);
   invariant(
     !minimallyEncodedRawThreadInfoWithMemberPermissions.thick,
     'ServerThreadInfo should be thin thread',
   );
 
   if (!shouldIncludeSpecialRoleFieldInRoles) {
     const minimallyEncodedRolesWithoutSpecialRoleField = Object.fromEntries(
       entries(minimallyEncodedRawThreadInfoWithMemberPermissions.roles).map(
         ([key, role]) => [
           key,
           {
             ..._omit('specialRole')(role),
             isDefault: roleIsDefaultRole(role),
           },
         ],
       ),
     );
     return {
       ...minimallyEncodedRawThreadInfoWithMemberPermissions,
       roles: minimallyEncodedRolesWithoutSpecialRoleField,
     };
   }
 
   if (!stripMemberPermissions) {
     return minimallyEncodedRawThreadInfoWithMemberPermissions;
   }
 
   // The return value of `deprecatedMinimallyEncodeRawThreadInfo` is typed
   // as `RawThreadInfo`, but still includes thread member permissions.
   // This was to prevent introducing "Legacy" types that would need to be
   // maintained going forward. This `any`-cast allows us to more precisely
   // type the obj being passed to `stripMemberPermissionsFromRawThreadInfo`.
   const rawThreadInfoWithMemberPermissions: ThinRawThreadInfoWithPermissions =
     (minimallyEncodedRawThreadInfoWithMemberPermissions: any);
 
   return stripMemberPermissionsFromRawThreadInfo(
     rawThreadInfoWithMemberPermissions,
   );
 }
 
 function threadUIName(threadInfo: ThreadInfo): string | ThreadEntity {
   if (threadInfo.name) {
     return firstLine(threadInfo.name);
   }
 
   const threadMembers: $ReadOnlyArray<RelativeMemberInfo> =
     threadInfo.members.filter(memberInfo => memberInfo.role);
   const memberEntities: $ReadOnlyArray<UserEntity> = threadMembers.map(member =>
     ET.user({ userInfo: member }),
   );
 
   return {
     type: 'thread',
     id: threadInfo.id,
     name: threadInfo.name,
     display: 'uiName',
     uiName: memberEntities,
     ifJustViewer:
       threadInfo.type === threadTypes.GENESIS_PRIVATE
         ? 'viewer_username'
         : 'just_you_string',
   };
 }
 
 function threadInfoFromRawThreadInfo(
   rawThreadInfo: RawThreadInfo,
   viewerID: ?string,
   userInfos: UserInfos,
 ): ThreadInfo {
   let threadInfo: ThreadInfo = {
     minimallyEncoded: true,
     id: rawThreadInfo.id,
     type: rawThreadInfo.type,
     name: rawThreadInfo.name,
     uiName: '',
     description: rawThreadInfo.description,
     color: rawThreadInfo.color,
     creationTime: rawThreadInfo.creationTime,
     parentThreadID: rawThreadInfo.parentThreadID,
     containingThreadID: rawThreadInfo.containingThreadID,
     community: rawThreadInfo.community,
     members: getRelativeMemberInfos(rawThreadInfo, viewerID, userInfos),
     roles: rawThreadInfo.roles,
     currentUser: rawThreadInfo.currentUser,
     repliesCount: rawThreadInfo.repliesCount,
   };
 
   threadInfo = {
     ...threadInfo,
     uiName: threadUIName(threadInfo),
   };
   const { sourceMessageID, avatar, pinnedCount } = rawThreadInfo;
   if (sourceMessageID) {
     threadInfo = { ...threadInfo, sourceMessageID };
   }
 
   if (avatar) {
     threadInfo = { ...threadInfo, avatar };
   } else if (
     threadTypeIsPrivate(rawThreadInfo.type) ||
     threadTypeIsPersonal(rawThreadInfo.type)
   ) {
     threadInfo = {
       ...threadInfo,
       avatar: getUserAvatarForThread(rawThreadInfo, viewerID, userInfos),
     };
   }
 
   if (pinnedCount) {
     threadInfo = { ...threadInfo, pinnedCount };
   }
   return threadInfo;
 }
 
 function filterOutDisabledPermissions(permissionsBitmask: string): string {
   const decodedPermissions: ThreadPermissionsInfo =
     threadPermissionsFromBitmaskHex(permissionsBitmask);
   const updatedPermissions = { ...decodedPermissions, ...disabledPermissions };
   const encodedUpdatedPermissions: string =
     permissionsToBitmaskHex(updatedPermissions);
   return encodedUpdatedPermissions;
 }
 
 function baseThreadIsWithBlockedUserOnly(
   threadInfo: LegacyRawThreadInfo | RawThreadInfo | ThreadInfo,
   viewerID: ?string,
   userInfos: UserInfos,
   checkOnlyViewerBlock: boolean,
 ) {
   const otherUserID = getSingleOtherUser(threadInfo, viewerID);
   if (!otherUserID) {
     return false;
   }
   const otherUserRelationshipStatus =
     userInfos[otherUserID]?.relationshipStatus;
 
   if (checkOnlyViewerBlock) {
     return (
       otherUserRelationshipStatus === userRelationshipStatus.BLOCKED_BY_VIEWER
     );
   }
 
   return (
     !!otherUserRelationshipStatus &&
     relationshipBlockedInEitherDirection(otherUserRelationshipStatus)
   );
 }
 
 function threadIsWithBlockedUserOnlyWithoutAdminRoleCheck(
   threadInfo: ThreadInfo | RawThreadInfo | LegacyRawThreadInfo,
   viewerID: ?string,
   userInfos: UserInfos,
   checkOnlyViewerBlock: boolean,
 ): boolean {
   if (threadOrParentThreadIsGroupChat(threadInfo)) {
     return false;
   }
   return baseThreadIsWithBlockedUserOnly(
     threadInfo,
     viewerID,
     userInfos,
     checkOnlyViewerBlock,
   );
 }
 
 function useThreadFrozenDueToViewerBlock(
   threadInfo: ThreadInfo,
   communityThreadInfo: ?ThreadInfo,
   viewerID: ?string,
   userInfos: UserInfos,
 ): boolean {
   const communityThreadInfoArray = React.useMemo(
     () => (communityThreadInfo ? [communityThreadInfo] : []),
     [communityThreadInfo],
   );
   const communityRootsMembersToRole = useCommunityRootMembersToRole(
     communityThreadInfoArray,
   );
   const memberToRole = communityRootsMembersToRole[communityThreadInfo?.id];
 
   const memberHasAdminRole = threadMembersWithoutAddedAdmin(threadInfo).some(
     m => roleIsAdminRole(memberToRole?.[m.id]),
   );
 
   return React.useMemo(() => {
     if (memberHasAdminRole) {
       return false;
     }
 
     return threadIsWithBlockedUserOnlyWithoutAdminRoleCheck(
       threadInfo,
       viewerID,
       userInfos,
       true,
     );
   }, [memberHasAdminRole, threadInfo, userInfos, viewerID]);
 }
 
 const threadTypeDescriptions: { [ThreadType]: string } = {
   [threadTypes.COMMUNITY_OPEN_SUBTHREAD]:
     'Anybody in the parent channel can see an open subchannel.',
   [threadTypes.COMMUNITY_SECRET_SUBTHREAD]:
     'Only visible to its members and admins of ancestor channels.',
 };
 
 function roleIsDefaultRole(
   roleInfo: ?ClientLegacyRoleInfo | ?RoleInfo,
 ): boolean {
   if (roleInfo?.specialRole === specialRoles.DEFAULT_ROLE) {
     return true;
   }
   return !!(roleInfo && roleInfo.isDefault);
 }
 
 function roleIsAdminRole(roleInfo: ?ClientLegacyRoleInfo | ?RoleInfo): boolean {
   if (roleInfo?.specialRole === specialRoles.ADMIN_ROLE) {
     return true;
   }
   return !!(roleInfo && !roleInfo.isDefault && roleInfo.name === 'Admins');
 }
 
 function threadHasAdminRole(
   threadInfo: ?(
     | LegacyRawThreadInfo
     | RawThreadInfo
     | ThreadInfo
     | ServerThreadInfo
   ),
 ): boolean {
   if (!threadInfo) {
     return false;
   }
   let hasSpecialRoleFieldBeenEncountered = false;
   for (const role of Object.values(threadInfo.roles)) {
     if (role.specialRole === specialRoles.ADMIN_ROLE) {
       return true;
     }
     if (role.specialRole !== undefined) {
       hasSpecialRoleFieldBeenEncountered = true;
     }
   }
   if (hasSpecialRoleFieldBeenEncountered) {
     return false;
   }
   return !!_find({ name: 'Admins' })(threadInfo.roles);
 }
 
 function identifyInvalidatedThreads(
   updateInfos: $ReadOnlyArray<ClientUpdateInfo>,
 ): Set<string> {
   const invalidated = new Set<string>();
   for (const updateInfo of updateInfos) {
     if (updateInfo.type === updateTypes.DELETE_THREAD) {
       invalidated.add(updateInfo.threadID);
     }
   }
   return invalidated;
 }
 
 const permissionsDisabledByBlockArray = values(
   threadPermissionsDisabledByBlock,
 );
 
 const permissionsDisabledByBlock: Set<ThreadPermission> = new Set(
   permissionsDisabledByBlockArray,
 );
 
 const disabledPermissions: ThreadPermissionsInfo =
   permissionsDisabledByBlockArray.reduce(
     (permissions: ThreadPermissionsInfo, permission: string) => ({
       ...permissions,
       [permission]: { value: false, source: null },
     }),
     {},
   );
 
 // Consider updating itemHeight in native/chat/chat-thread-list.react.js
 // if you change this
 const emptyItemText: string =
   `Muted chats are just like normal chats, except they don't ` +
   `contribute to your unread count.\n\n` +
   `To move a chat over here, switch the “Muted” option in its settings.`;
 
 function threadNoun(threadType: ThreadType, parentThreadID: ?string): string {
   if (threadTypeIsSidebar(threadType)) {
     return 'thread';
   } else if (
     threadType === threadTypes.COMMUNITY_SECRET_SUBTHREAD &&
     parentThreadID === genesis().id
   ) {
     return 'chat';
   } else if (
     threadType === threadTypes.COMMUNITY_ROOT ||
     threadType === threadTypes.COMMUNITY_ANNOUNCEMENT_ROOT ||
     threadType === threadTypes.COMMUNITY_OPEN_SUBTHREAD ||
     threadType === threadTypes.COMMUNITY_OPEN_ANNOUNCEMENT_SUBTHREAD ||
     threadType === threadTypes.COMMUNITY_SECRET_SUBTHREAD ||
     threadType === threadTypes.COMMUNITY_SECRET_ANNOUNCEMENT_SUBTHREAD ||
     threadType === threadTypes.GENESIS
   ) {
     return 'channel';
   } else {
     return 'chat';
   }
 }
 
 function threadLabel(threadType: ThreadType): string {
   if (
     threadType === threadTypes.COMMUNITY_OPEN_SUBTHREAD ||
     threadType === threadTypes.COMMUNITY_OPEN_ANNOUNCEMENT_SUBTHREAD
   ) {
     return 'Open';
   } else if (threadType === threadTypes.GENESIS_PERSONAL) {
     return 'Personal';
   } else if (threadTypeIsSidebar(threadType)) {
     return 'Thread';
   } else if (threadType === threadTypes.GENESIS_PRIVATE) {
     return 'Private';
   } else if (
     threadType === threadTypes.COMMUNITY_ROOT ||
     threadType === threadTypes.COMMUNITY_ANNOUNCEMENT_ROOT ||
     threadType === threadTypes.GENESIS
   ) {
     return 'Community';
   } else if (threadTypeIsThick(threadType)) {
     return 'Local DM';
   } else {
     return 'Secret';
   }
 }
 
 type ExistingThreadInfoFinderParams = {
   +searching: boolean,
   +userInfoInputArray: $ReadOnlyArray<AccountUserInfo>,
 };
 type ExistingThreadInfoFinder = (
   params: ExistingThreadInfoFinderParams,
 ) => ?ThreadInfo;
 
 function useExistingThreadInfoFinder(
   baseThreadInfo: ?ThreadInfo,
 ): ExistingThreadInfoFinder {
   const threadInfos = useSelector(threadInfoSelector);
   const loggedInUserInfo = useLoggedInUserInfo();
 
   const pendingToRealizedThreadIDs = useSelector(state =>
     pendingToRealizedThreadIDsSelector(state.threadStore.threadInfos),
   );
   const usingOlmViaTunnelbrokerForDMs = useAllowOlmViaTunnelbrokerForDMs();
   return React.useCallback(
     (params: ExistingThreadInfoFinderParams): ?ThreadInfo => {
       if (!baseThreadInfo) {
         return null;
       }
 
       const realizedThreadInfo = threadInfos[baseThreadInfo.id];
       if (realizedThreadInfo) {
         return realizedThreadInfo;
       }
 
       if (!loggedInUserInfo || !threadIsPending(baseThreadInfo.id)) {
         return baseThreadInfo;
       }
       const viewerID = loggedInUserInfo?.id;
 
       invariant(
         threadTypeCanBePending(baseThreadInfo.type),
         `ThreadInfo has pending ID ${baseThreadInfo.id}, but type that ` +
           `should not be pending ${baseThreadInfo.type}`,
       );
 
       const { searching, userInfoInputArray } = params;
 
       const { sourceMessageID } = baseThreadInfo;
 
       if (searching) {
         const pendingThinThreadID = getPendingThreadID(
           pendingThreadType(
             userInfoInputArray.length,
             'thin',
             usingOlmViaTunnelbrokerForDMs,
           ),
           [...userInfoInputArray.map(user => user.id), viewerID],
           sourceMessageID,
         );
         const realizedThinThreadID =
           pendingToRealizedThreadIDs.get(pendingThinThreadID);
         if (realizedThinThreadID && threadInfos[realizedThinThreadID]) {
           return threadInfos[realizedThinThreadID];
         }
         const pendingThickThreadID = getPendingThreadID(
           pendingThreadType(
             userInfoInputArray.length,
             'thick',
             usingOlmViaTunnelbrokerForDMs,
           ),
           [...userInfoInputArray.map(user => user.id), viewerID],
           sourceMessageID,
         );
         const realizedThickThreadID =
           pendingToRealizedThreadIDs.get(pendingThickThreadID);
         if (realizedThickThreadID && threadInfos[realizedThickThreadID]) {
           return threadInfos[realizedThickThreadID];
         }
       } else {
         const pendingThinThreadID = getPendingThreadID(
           baseThreadInfo.type,
           baseThreadInfo.members.map(member => member.id),
           sourceMessageID,
         );
         const realizedThreadID =
           pendingToRealizedThreadIDs.get(pendingThinThreadID);
         if (realizedThreadID && threadInfos[realizedThreadID]) {
           return threadInfos[realizedThreadID];
         }
       }
 
       const updatedThread = searching
         ? createPendingThread({
             viewerID,
             threadType: pendingThreadType(
               userInfoInputArray.length,
               'thick',
               usingOlmViaTunnelbrokerForDMs,
             ),
             members: [loggedInUserInfo, ...userInfoInputArray],
           })
         : baseThreadInfo;
 
       return updatedThread;
     },
     [
       baseThreadInfo,
       threadInfos,
       loggedInUserInfo,
       usingOlmViaTunnelbrokerForDMs,
       pendingToRealizedThreadIDs,
     ],
   );
 }
 
 type ThreadTypeParentRequirement = 'optional' | 'required' | 'disabled';
 
 function getThreadTypeParentRequirement(
   threadType: ThreadType,
 ): ThreadTypeParentRequirement {
   if (
     threadType === threadTypes.COMMUNITY_OPEN_SUBTHREAD ||
     threadType === threadTypes.COMMUNITY_OPEN_ANNOUNCEMENT_SUBTHREAD ||
     //threadType === threadTypes.COMMUNITY_SECRET_SUBTHREAD ||
     threadType === threadTypes.COMMUNITY_SECRET_ANNOUNCEMENT_SUBTHREAD ||
     threadTypeIsSidebar(threadType)
   ) {
     return 'required';
   } else if (
     threadType === threadTypes.COMMUNITY_ROOT ||
     threadType === threadTypes.COMMUNITY_ANNOUNCEMENT_ROOT ||
     threadType === threadTypes.GENESIS ||
     threadType === threadTypes.GENESIS_PERSONAL ||
     threadType === threadTypes.GENESIS_PRIVATE
   ) {
     return 'disabled';
   } else {
     return 'optional';
   }
 }
 
 function checkIfDefaultMembersAreVoiced(threadInfo: ThreadInfo): boolean {
   const defaultRoleID = Object.keys(threadInfo.roles).find(roleID =>
     roleIsDefaultRole(threadInfo.roles[roleID]),
   );
   invariant(
     defaultRoleID !== undefined,
     'all threads should have a default role',
   );
   const defaultRole = threadInfo.roles[defaultRoleID];
   const defaultRolePermissions =
     decodeMinimallyEncodedRoleInfo(defaultRole).permissions;
 
   return !!defaultRolePermissions[threadPermissions.VOICED];
 }
 
 const draftKeySuffix = '/message_composer';
 
 function draftKeyFromThreadID(threadID: string): string {
   return `${threadID}${draftKeySuffix}`;
 }
 
 function getContainingThreadID(
   parentThreadInfo:
     | ?ServerThreadInfo
     | LegacyRawThreadInfo
     | RawThreadInfo
     | ThreadInfo,
   threadType: ThreadType,
 ): ?string {
   if (!parentThreadInfo) {
     return null;
   }
   if (threadTypeIsSidebar(threadType)) {
     return parentThreadInfo.id;
   }
   if (!parentThreadInfo.containingThreadID) {
     return parentThreadInfo.id;
   }
   return parentThreadInfo.containingThreadID;
 }
 
 function getCommunity(
   parentThreadInfo:
     | ?ServerThreadInfo
     | LegacyRawThreadInfo
     | RawThreadInfo
     | ThreadInfo,
 ): ?string {
   if (!parentThreadInfo) {
     return null;
   }
   const { id, community, type } = parentThreadInfo;
   if (community !== null && community !== undefined) {
     return community;
   }
   if (threadTypeIsCommunityRoot(type)) {
     return id;
   }
   return null;
 }
 
 function getThreadListSearchResults(
   chatListData: $ReadOnlyArray<ChatThreadItem>,
   searchText: string,
   threadFilter: ThreadInfo => boolean,
   threadSearchResults: $ReadOnlySet<string>,
   usersSearchResults: $ReadOnlyArray<GlobalAccountUserInfo>,
   loggedInUserInfo: ?LoggedInUserInfo,
   allowOlmViaTunnelbrokerForDMs: boolean,
 ): $ReadOnlyArray<ChatThreadItem> {
   if (!searchText) {
     return chatListData.filter(
       item =>
         threadIsTopLevel(item.threadInfo) && threadFilter(item.threadInfo),
     );
   }
 
   const privateThreads = [];
   const personalThreads = [];
   const otherThreads = [];
   for (const item of chatListData) {
     if (!threadSearchResults.has(item.threadInfo.id)) {
       continue;
     }
     if (item.threadInfo.type === threadTypes.GENESIS_PRIVATE) {
       privateThreads.push({ ...item, sidebars: [] });
     } else if (item.threadInfo.type === threadTypes.GENESIS_PERSONAL) {
       personalThreads.push({ ...item, sidebars: [] });
     } else {
       otherThreads.push({ ...item, sidebars: [] });
     }
   }
 
   const chatItems: ChatThreadItem[] = [
     ...privateThreads,
     ...personalThreads,
     ...otherThreads,
   ];
   if (loggedInUserInfo) {
     chatItems.push(
       ...usersSearchResults.map(user =>
         createPendingThreadItem(
           loggedInUserInfo,
           user,
           allowOlmViaTunnelbrokerForDMs,
         ),
       ),
     );
   }
   return chatItems;
 }
 
 function reorderThreadSearchResults<T: RawThreadInfo | ThreadInfo>(
   threadInfos: $ReadOnlyArray<T>,
   threadSearchResults: $ReadOnlyArray<string>,
 ): T[] {
   const privateThreads = [];
   const personalThreads = [];
   const otherThreads = [];
   const threadSearchResultsSet = new Set(threadSearchResults);
   for (const threadInfo of threadInfos) {
     if (!threadSearchResultsSet.has(threadInfo.id)) {
       continue;
     }
     if (threadInfo.type === threadTypes.GENESIS_PRIVATE) {
       privateThreads.push(threadInfo);
     } else if (threadInfo.type === threadTypes.GENESIS_PERSONAL) {
       personalThreads.push(threadInfo);
     } else {
       otherThreads.push(threadInfo);
     }
   }
 
   return [...privateThreads, ...personalThreads, ...otherThreads];
 }
 
 function useAvailableThreadMemberActions(
   memberInfo: RelativeMemberInfo,
   threadInfo: ThreadInfo,
   canEdit: ?boolean = true,
 ): $ReadOnlyArray<'change_role' | 'remove_user'> {
   const canRemoveMembers = useThreadHasPermission(
     threadInfo,
     threadPermissions.REMOVE_MEMBERS,
   );
   const canChangeRoles = useThreadHasPermission(
     threadInfo,
     threadPermissions.CHANGE_ROLE,
   );
 
   return React.useMemo(() => {
     const { role } = memberInfo;
     if (!canEdit || !role) {
       return [];
     }
 
     const result = [];
 
     if (
       canChangeRoles &&
       memberInfo.username &&
       threadHasAdminRole(threadInfo)
     ) {
       result.push('change_role');
     }
 
     if (
       canRemoveMembers &&
       !memberInfo.isViewer &&
       (canChangeRoles || roleIsDefaultRole(threadInfo.roles[role]))
     ) {
       result.push('remove_user');
     }
 
     return result;
   }, [canChangeRoles, canEdit, canRemoveMembers, memberInfo, threadInfo]);
 }
 
 function patchThreadInfoToIncludeMentionedMembersOfParent(
   threadInfo: ThreadInfo,
   parentThreadInfo: ThreadInfo,
   messageText: string,
   viewerID: string,
 ): ThreadInfo {
   const members: UserIDAndUsername[] = threadInfo.members
     .map(({ id, username }) =>
       username ? ({ id, username }: UserIDAndUsername) : null,
     )
     .filter(Boolean);
   const mentionedNewMembers = extractNewMentionedParentMembers(
     messageText,
     threadInfo,
     parentThreadInfo,
   );
   if (mentionedNewMembers.length === 0) {
     return threadInfo;
   }
   members.push(...mentionedNewMembers);
   const threadType = threadTypeIsThick(parentThreadInfo.type)
     ? threadTypes.THICK_SIDEBAR
     : threadTypes.SIDEBAR;
 
   return createPendingThread({
     viewerID,
     threadType,
     members,
     parentThreadInfo,
     threadColor: threadInfo.color,
     name: threadInfo.name,
     sourceMessageID: threadInfo.sourceMessageID,
   });
 }
 
 function threadInfoInsideCommunity(
   threadInfo: RawThreadInfo | ThreadInfo,
   communityID: string,
 ): boolean {
   return threadInfo.community === communityID || threadInfo.id === communityID;
 }
 
 type RoleAndMemberCount = {
   [roleName: string]: number,
 };
 
 function useRoleMemberCountsForCommunity(
   threadInfo: ThreadInfo,
 ): RoleAndMemberCount {
   return React.useMemo(() => {
     const roleIDsToNames: { [string]: string } = {};
 
     Object.keys(threadInfo.roles).forEach(roleID => {
       roleIDsToNames[roleID] = threadInfo.roles[roleID].name;
     });
 
     const roleNamesToMemberCount: RoleAndMemberCount = {};
 
     threadInfo.members.forEach(({ role: roleID }) => {
       invariant(roleID, 'Community member should have a role');
       const roleName = roleIDsToNames[roleID];
 
       roleNamesToMemberCount[roleName] =
         (roleNamesToMemberCount[roleName] ?? 0) + 1;
     });
 
     // For all community roles with no members, add them to the list with 0
     Object.keys(roleIDsToNames).forEach(roleName => {
       if (roleNamesToMemberCount[roleIDsToNames[roleName]] === undefined) {
         roleNamesToMemberCount[roleIDsToNames[roleName]] = 0;
       }
     });
 
     return roleNamesToMemberCount;
   }, [threadInfo.members, threadInfo.roles]);
 }
 
 function useRoleNamesToSpecialRole(threadInfo: ThreadInfo): {
   +[roleName: string]: ?SpecialRole,
 } {
   return React.useMemo(() => {
     const roleNamesToSpecialRole: { [roleName: string]: ?SpecialRole } = {};
     values(threadInfo.roles).forEach(role => {
       if (roleNamesToSpecialRole[role.name] !== undefined) {
         return;
       }
       if (roleIsDefaultRole(role)) {
         roleNamesToSpecialRole[role.name] = specialRoles.DEFAULT_ROLE;
       } else if (roleIsAdminRole(role)) {
         roleNamesToSpecialRole[role.name] = specialRoles.ADMIN_ROLE;
       } else {
         roleNamesToSpecialRole[role.name] = null;
       }
     });
     return roleNamesToSpecialRole;
   }, [threadInfo.roles]);
 }
 
 type RoleUserSurfacedPermissions = {
   +[roleName: string]: $ReadOnlySet<UserSurfacedPermission>,
 };
 // Iterates through the existing roles in the community and 'reverse maps'
 // the set of permission literals for each role to user-facing permission enums
 // to help pre-populate the permission checkboxes when editing roles.
 function useRoleUserSurfacedPermissions(
   threadInfo: ThreadInfo,
 ): RoleUserSurfacedPermissions {
   return React.useMemo(() => {
     const roleNamesToPermissions: { [string]: Set<UserSurfacedPermission> } =
       {};
 
     Object.keys(threadInfo.roles).forEach(roleID => {
       const roleName = threadInfo.roles[roleID].name;
       const rolePermissions = decodeMinimallyEncodedRoleInfo(
         threadInfo.roles[roleID],
       ).permissions;
       roleNamesToPermissions[roleName] =
         userSurfacedPermissionsFromRolePermissions(rolePermissions);
     });
 
     return roleNamesToPermissions;
   }, [threadInfo.roles]);
 }
 
 function communityOrThreadNoun(threadInfo: RawThreadInfo | ThreadInfo): string {
   return threadTypeIsCommunityRoot(threadInfo.type)
     ? 'community'
     : threadNoun(threadInfo.type, threadInfo.parentThreadID);
 }
 
 function getThreadsToDeleteText(
   threadInfo: RawThreadInfo | ThreadInfo,
 ): string {
   return `${
     threadTypeIsCommunityRoot(threadInfo.type)
       ? 'Subchannels and threads'
       : 'Threads'
   } within this ${communityOrThreadNoun(threadInfo)}`;
 }
 
 function useUserProfileThreadInfo(userInfo: ?UserInfo): ?UserProfileThreadInfo {
   const userID = userInfo?.id;
   const username = userInfo?.username;
 
   const loggedInUserInfo = useLoggedInUserInfo();
   const isViewerProfile = loggedInUserInfo?.id === userID;
 
   const privateThreadInfosSelector = threadInfosSelectorForThreadType(
     threadTypes.GENESIS_PRIVATE,
   );
   const privateThreadInfos = useSelector(privateThreadInfosSelector);
 
   const personalThreadInfosSelector = threadInfosSelectorForThreadType(
     threadTypes.GENESIS_PERSONAL,
   );
 
   const personalThreadInfos = useSelector(personalThreadInfosSelector);
 
   const usersWithPersonalThread = useSelector(usersWithPersonalThreadSelector);
 
   const allowOlmViaTunnelbrokerForDMs = useAllowOlmViaTunnelbrokerForDMs();
 
   return React.useMemo(() => {
     if (!loggedInUserInfo || !userID || !username) {
       return null;
     }
 
     if (isViewerProfile) {
       const privateThreadInfo: ?ThreadInfo = privateThreadInfos[0];
 
       return privateThreadInfo ? { threadInfo: privateThreadInfo } : null;
     }
 
     if (usersWithPersonalThread.has(userID)) {
       const personalThreadInfo: ?ThreadInfo = personalThreadInfos.find(
         threadInfo =>
           userID === getSingleOtherUser(threadInfo, loggedInUserInfo.id),
       );
 
       return personalThreadInfo ? { threadInfo: personalThreadInfo } : null;
     }
 
     const pendingPersonalThreadInfo = createPendingPersonalThread(
       loggedInUserInfo,
       userID,
       username,
       allowOlmViaTunnelbrokerForDMs,
     );
 
     return pendingPersonalThreadInfo;
   }, [
     allowOlmViaTunnelbrokerForDMs,
     isViewerProfile,
     loggedInUserInfo,
     personalThreadInfos,
     privateThreadInfos,
     userID,
     username,
     usersWithPersonalThread,
   ]);
 }
 
 function assertAllThreadInfosAreLegacy(rawThreadInfos: MixedRawThreadInfos): {
   [id: string]: LegacyRawThreadInfo,
 } {
   return Object.fromEntries(
     Object.entries(rawThreadInfos).map(([id, rawThreadInfo]) => {
       invariant(
         !rawThreadInfo.minimallyEncoded,
         `rawThreadInfos shouldn't be minimallyEncoded`,
       );
       return [id, rawThreadInfo];
     }),
   );
 }
 
 function useOnScreenEntryEditableThreadInfos(): $ReadOnlyArray<ThreadInfo> {
   const visibleThreadInfos = useSelector(onScreenThreadInfos);
   const editableVisibleThreadInfos = useThreadsWithPermission(
     visibleThreadInfos,
     threadPermissions.EDIT_ENTRIES,
   );
   return editableVisibleThreadInfos;
 }
 
 function createThreadTimestamps(
   timestamp: number,
   memberIDs: $ReadOnlyArray<string>,
 ): ThreadTimestamps {
   return {
     name: timestamp,
     avatar: timestamp,
     description: timestamp,
     color: timestamp,
     members: Object.fromEntries(
       memberIDs.map(id => [
         id,
         { isMember: timestamp, subscription: timestamp },
       ]),
     ),
     currentUser: {
       unread: timestamp,
     },
   };
 }
 
-function userSupportsThickThreads(
+function userHasDeviceList(
   userID: string,
   auxUserInfos: AuxUserInfos,
 ): boolean {
   return (
     !!auxUserInfos[userID]?.deviceList &&
     auxUserInfos[userID].deviceList.devices.length > 0
   );
 }
 
 export {
   threadHasPermission,
   useCommunityRootMembersToRole,
   useThreadHasPermission,
   viewerIsMember,
   threadInChatList,
   useIsThreadInChatList,
   useThreadsInChatList,
   threadIsTopLevel,
   threadIsChannel,
   threadIsSidebar,
   threadInBackgroundChatList,
   threadInHomeChatList,
   threadIsInHome,
   threadInFilterList,
   userIsMember,
   threadActualMembers,
   threadOtherMembers,
   threadIsGroupChat,
   threadIsPending,
   threadIsPendingSidebar,
   getSingleOtherUser,
   getPendingThreadID,
   parsePendingThreadID,
   createPendingThread,
   extractNewMentionedParentMembers,
   pendingThreadType,
   filterOutDisabledPermissions,
   useThreadFrozenDueToViewerBlock,
   rawThreadInfoFromServerThreadInfo,
   threadUIName,
   threadInfoFromRawThreadInfo,
   threadTypeDescriptions,
   threadIsWithBlockedUserOnlyWithoutAdminRoleCheck,
   roleIsDefaultRole,
   roleIsAdminRole,
   threadHasAdminRole,
   identifyInvalidatedThreads,
   permissionsDisabledByBlock,
   emptyItemText,
   threadNoun,
   threadLabel,
   useExistingThreadInfoFinder,
   getThreadTypeParentRequirement,
   checkIfDefaultMembersAreVoiced,
   draftKeySuffix,
   draftKeyFromThreadID,
   threadTypeCanBePending,
   getContainingThreadID,
   getCommunity,
   getThreadListSearchResults,
   reorderThreadSearchResults,
   useAvailableThreadMemberActions,
   threadMembersWithoutAddedAdmin,
   patchThreadInfoToIncludeMentionedMembersOfParent,
   threadInfoInsideCommunity,
   useRoleMemberCountsForCommunity,
   useRoleNamesToSpecialRole,
   useRoleUserSurfacedPermissions,
   getThreadsToDeleteText,
   useUserProfileThreadInfo,
   assertAllThreadInfosAreLegacy,
   useOnScreenEntryEditableThreadInfos,
   extractMentionedMembers,
   isMemberActive,
   createThreadTimestamps,
-  userSupportsThickThreads,
+  userHasDeviceList,
 };