diff --git a/lib/shared/thread-utils.js b/lib/shared/thread-utils.js
index dde46492b..7425a73ff 100644
--- a/lib/shared/thread-utils.js
+++ b/lib/shared/thread-utils.js
@@ -1,1726 +1,1711 @@
 // @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 { extractKeyserverIDFromID } 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 {
   RelativeMemberInfo,
   RawThreadInfo,
   MemberInfo,
   RoleInfo,
   ThreadInfo,
 } from '../types/minimally-encoded-thread-permissions-types.js';
 import {
   decodeMinimallyEncodedRoleInfo,
   minimallyEncodeMemberInfo,
   minimallyEncodeRawThreadInfo,
   minimallyEncodeRoleInfo,
   minimallyEncodeThreadCurrentUserInfo,
 } from '../types/minimally-encoded-thread-permissions-types.js';
 import { userRelationshipStatus } from '../types/relationship-types.js';
 import {
   threadPermissionPropagationPrefixes,
   threadPermissions,
   configurableCommunityPermissions,
   type ThreadPermission,
   type ThreadPermissionsInfo,
   type ThreadRolePermissionsBlob,
   type UserSurfacedPermission,
   threadPermissionFilterPrefixes,
   threadPermissionsDisabledByBlock,
   type ThreadPermissionNotAffectedByBlock,
 } from '../types/thread-permission-types.js';
 import {
   type ThreadType,
   threadTypes,
   threadTypeIsCommunityRoot,
   assertThreadType,
 } from '../types/thread-types-enum.js';
 import type {
   LegacyRawThreadInfo,
   ClientLegacyRoleInfo,
   ServerThreadInfo,
   ServerMemberInfo,
   UserProfileThreadInfo,
   MixedRawThreadInfos,
   LegacyMemberInfo,
 } 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 { entries, values } from '../utils/objects.js';
 import { useSelector } from '../utils/redux-utils.js';
 import { firstLine } from '../utils/string-utils.js';
 import { pendingThreadIDRegex } 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: MemberInfo | 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 = innerThreadFrozenDueToBlock(
         threadInfo,
         loggedInUserInfo.id,
         userInfos,
         true,
       );
 
       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 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 && threadInfo.type !== threadTypes.SIDEBAR);
 }
 
 function threadIsSidebar(threadInfo: ?(RawThreadInfo | ThreadInfo)): boolean {
   return threadInfo?.type === threadTypes.SIDEBAR;
 }
 
 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 &&
     threadInfo.type !== threadTypes.SIDEBAR
   );
 }
 
 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<MemberInfo | RelativeMemberInfo>,
 ): $ReadOnlyArray<string> {
   return memberInfos
     .filter(memberInfo => memberInfo.role)
     .map(memberInfo => memberInfo.id);
 }
 
 function threadOtherMembers<
   T: LegacyMemberInfo | MemberInfo | RelativeMemberInfo,
 >(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 = extractKeyserverIDFromID(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/sidebar/');
 }
 
 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: $ReadOnlyArray<string>,
   sourceMessageID: ?string,
 ): string {
   const pendingThreadKey = sourceMessageID
     ? `sidebar/${sourceMessageID}`
     : [...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('/');
   const threadType =
     threadTypeString === 'sidebar'
       ? threadTypes.SIDEBAR
       : assertThreadType(Number(threadTypeString.replace('type', '')));
   const memberIDs = threadTypeString === 'sidebar' ? [] : threadKey.split('+');
   const sourceMessageID = threadTypeString === 'sidebar' ? 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,
   };
 
   const rawThreadInfo: RawThreadInfo = {
     minimallyEncoded: true,
     id: threadID,
     type: threadType,
     name: name ?? null,
     description: null,
     color: threadColor ?? generatePendingThreadColor(memberIDs),
     creationTime: now,
     parentThreadID: parentThreadInfo?.id ?? null,
     containingThreadID: getContainingThreadID(parentThreadInfo, threadType),
     community: getCommunity(parentThreadInfo),
     members: members.map(member =>
       minimallyEncodeMemberInfo({
         id: member.id,
         role: role.id,
         permissions: membershipPermissions,
         isSender: false,
       }),
     ),
     roles: {
       [role.id]: role,
     },
     currentUser: minimallyEncodeThreadCurrentUserInfo({
       role: role.id,
       permissions: membershipPermissions,
       subscription: {
         pushNotifs: false,
         home: false,
       },
       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,
 ): PendingPersonalThread {
   const pendingPersonalThreadUserInfo = {
     id: userID,
     username: username,
   };
 
   const threadInfo = createPendingThread({
     viewerID: loggedInUserInfo.id,
     threadType: threadTypes.PERSONAL,
     members: [loggedInUserInfo, pendingPersonalThreadUserInfo],
   });
 
   return { threadInfo, pendingPersonalThreadUserInfo };
 }
 
 function createPendingThreadItem(
   loggedInUserInfo: LoggedInUserInfo,
   user: UserIDAndUsername,
 ): ChatThreadItem {
   const { threadInfo, pendingPersonalThreadUserInfo } =
     createPendingPersonalThread(loggedInUserInfo, user.id, user.username);
 
   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): 4 | 6 | 7 {
   if (numberOfOtherMembers === 0) {
     return threadTypes.PRIVATE;
   } else if (numberOfOtherMembers === 1) {
     return threadTypes.PERSONAL;
   } else {
     return threadTypes.LOCAL;
   }
 }
 
 function threadTypeCanBePending(threadType: ThreadType): boolean {
   return (
     threadType === threadTypes.PERSONAL ||
     threadType === threadTypes.LOCAL ||
     threadType === threadTypes.SIDEBAR ||
     threadType === threadTypes.PRIVATE
   );
 }
 
 type RawThreadInfoOptions = {
   +filterThreadEditAvatarPermission?: boolean,
   +excludePinInfo?: boolean,
   +filterManageInviteLinksPermission?: boolean,
   +filterVoicedInAnnouncementChannelsPermission?: boolean,
   +minimallyEncodePermissions?: boolean,
   +includeSpecialRoleFieldInRoles?: boolean,
   +allowAddingUsersToCommunityRoot?: boolean,
 };
 
 function rawThreadInfoFromServerThreadInfo(
   serverThreadInfo: ServerThreadInfo,
   viewerID: string,
   options?: RawThreadInfoOptions,
 ): ?LegacyRawThreadInfo | ?RawThreadInfo {
   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 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)),
     )(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: {
         home: false,
         pushNotifs: false,
       },
       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 minimallyEncoded = minimallyEncodeRawThreadInfo(rawThreadInfo);
   if (shouldIncludeSpecialRoleFieldInRoles) {
     return minimallyEncoded;
   }
 
   const minimallyEncodedRolesWithoutSpecialRoleField = Object.fromEntries(
     entries(minimallyEncoded.roles).map(([key, role]) => [
       key,
       {
         ..._omit('specialRole')(role),
         isDefault: roleIsDefaultRole(role),
       },
     ]),
   );
 
   return {
     ...minimallyEncoded,
     roles: minimallyEncodedRolesWithoutSpecialRoleField,
   };
 }
 
 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.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 (
     rawThreadInfo.type === threadTypes.PERSONAL ||
     rawThreadInfo.type === threadTypes.PRIVATE
   ) {
     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;
 }
 
 type ThreadIsWithBlockedUserOnlyOptions = {
   +checkOnlyViewerBlock: boolean,
   +skipMemberAdminRoleCheck: boolean,
 };
 
 function threadIsWithBlockedUserOnly(
   threadInfo: LegacyRawThreadInfo | RawThreadInfo | ThreadInfo,
   viewerID: ?string,
   userInfos: UserInfos,
   options: ThreadIsWithBlockedUserOnlyOptions,
 ): boolean {
   const { checkOnlyViewerBlock, skipMemberAdminRoleCheck } = options;
   if (
     threadOrParentThreadIsGroupChat(threadInfo) ||
     (!skipMemberAdminRoleCheck && threadOrParentThreadHasAdminRole(threadInfo))
   ) {
     return false;
   }
 
   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 innerThreadFrozenDueToBlock(
   threadInfo: LegacyRawThreadInfo | RawThreadInfo | ThreadInfo,
   viewerID: ?string,
   userInfos: UserInfos,
   skipMemberAdminRoleCheck: boolean,
 ): boolean {
   const options: ThreadIsWithBlockedUserOnlyOptions = {
     checkOnlyViewerBlock: false,
     skipMemberAdminRoleCheck,
   };
 
   return threadIsWithBlockedUserOnly(threadInfo, viewerID, userInfos, options);
 }
 
 function threadFrozenDueToBlock(
   threadInfo: LegacyRawThreadInfo | RawThreadInfo | ThreadInfo,
   viewerID: ?string,
   userInfos: UserInfos,
 ): boolean {
   return innerThreadFrozenDueToBlock(threadInfo, viewerID, userInfos, false);
 }
 
-function threadFrozenDueToViewerBlock(
-  threadInfo: ThreadInfo,
-  communityThreadInfo: ?ThreadInfo,
-  viewerID: ?string,
-  userInfos: UserInfos,
-): boolean {
-  const options: ThreadIsWithBlockedUserOnlyOptions = {
-    checkOnlyViewerBlock: true,
-    skipMemberAdminRoleCheck: false,
-  };
-
-  return threadIsWithBlockedUserOnly(threadInfo, viewerID, userInfos, options);
-}
-
 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;
     }
 
     const options: ThreadIsWithBlockedUserOnlyOptions = {
       checkOnlyViewerBlock: true,
       skipMemberAdminRoleCheck: true,
     };
     return threadIsWithBlockedUserOnly(
       threadInfo,
       viewerID,
       userInfos,
       options,
     );
   }, [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.',
 };
 
 // Since we don't have access to all of the ancestor ThreadInfos, we approximate
 // "parent admin" as anybody with CHANGE_ROLE permissions.
 function memberHasAdminPowers(
   memberInfo:
     | RelativeMemberInfo
     | LegacyMemberInfo
     | MemberInfo
     | ServerMemberInfo,
 ): boolean {
   if (memberInfo.minimallyEncoded) {
     invariant(
       memberInfo.permissions,
       'memberInfo must have permissions field in memberHasAdminPowers',
     );
     return hasPermission(memberInfo.permissions, threadPermissions.CHANGE_ROLE);
   }
   return !!memberInfo.permissions[threadPermissions.CHANGE_ROLE]?.value;
 }
 
 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 threadOrParentThreadHasAdminRole(
   threadInfo: LegacyRawThreadInfo | RawThreadInfo | ThreadInfo,
 ) {
   return (
     threadMembersWithoutAddedAdmin(threadInfo).filter(member =>
       memberHasAdminPowers(member),
     ).length > 0
   );
 }
 
 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 =
   `Background 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 “Background” option in its settings.`;
 
 function threadNoun(threadType: ThreadType, parentThreadID: ?string): string {
   if (threadType === threadTypes.SIDEBAR) {
     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.PERSONAL) {
     return 'Personal';
   } else if (threadType === threadTypes.SIDEBAR) {
     return 'Thread';
   } else if (threadType === threadTypes.PRIVATE) {
     return 'Private';
   } else if (
     threadType === threadTypes.COMMUNITY_ROOT ||
     threadType === threadTypes.COMMUNITY_ANNOUNCEMENT_ROOT ||
     threadType === threadTypes.GENESIS
   ) {
     return 'Community';
   } 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),
   );
   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;
       const pendingThreadID = searching
         ? getPendingThreadID(
             pendingThreadType(userInfoInputArray.length),
             [...userInfoInputArray.map(user => user.id), viewerID],
             sourceMessageID,
           )
         : getPendingThreadID(
             baseThreadInfo.type,
             baseThreadInfo.members.map(member => member.id),
             sourceMessageID,
           );
 
       const realizedThreadID = pendingToRealizedThreadIDs.get(pendingThreadID);
       if (realizedThreadID && threadInfos[realizedThreadID]) {
         return threadInfos[realizedThreadID];
       }
 
       const updatedThread = searching
         ? createPendingThread({
             viewerID,
             threadType: pendingThreadType(userInfoInputArray.length),
             members: [loggedInUserInfo, ...userInfoInputArray],
           })
         : baseThreadInfo;
 
       return updatedThread;
     },
     [baseThreadInfo, threadInfos, loggedInUserInfo, 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 ||
     threadType === threadTypes.SIDEBAR
   ) {
     return 'required';
   } else if (
     threadType === threadTypes.COMMUNITY_ROOT ||
     threadType === threadTypes.COMMUNITY_ANNOUNCEMENT_ROOT ||
     threadType === threadTypes.GENESIS ||
     threadType === threadTypes.PERSONAL ||
     threadType === threadTypes.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 (threadType === threadTypes.SIDEBAR) {
     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,
 ): $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.PRIVATE) {
       privateThreads.push({ ...item, sidebars: [] });
     } else if (item.threadInfo.type === threadTypes.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),
       ),
     );
   }
   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.PRIVATE) {
       privateThreads.push(threadInfo);
     } else if (threadInfo.type === threadTypes.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);
   return createPendingThread({
     viewerID,
     threadType: threadTypes.SIDEBAR,
     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 = Object.keys(
         decodeMinimallyEncodedRoleInfo(threadInfo.roles[roleID]).permissions,
       );
 
       const setOfUserSurfacedPermissions = new Set<UserSurfacedPermission>();
 
       rolePermissions.forEach(rolePermission => {
         const userSurfacedPermission = Object.keys(
           configurableCommunityPermissions,
         ).find(key =>
           configurableCommunityPermissions[key].has(rolePermission),
         );
 
         if (userSurfacedPermission) {
           setOfUserSurfacedPermissions.add(userSurfacedPermission);
         }
       });
       roleNamesToPermissions[roleName] = setOfUserSurfacedPermissions;
     });
 
     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.PRIVATE,
   );
   const privateThreadInfos = useSelector(privateThreadInfosSelector);
 
   const personalThreadInfosSelector = threadInfosSelectorForThreadType(
     threadTypes.PERSONAL,
   );
 
   const personalThreadInfos = useSelector(personalThreadInfosSelector);
 
   const usersWithPersonalThread = useSelector(usersWithPersonalThreadSelector);
 
   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,
     );
 
     return pendingPersonalThreadInfo;
   }, [
     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;
 }
 
 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,
   threadFrozenDueToBlock,
-  threadFrozenDueToViewerBlock,
   useThreadFrozenDueToViewerBlock,
   rawThreadInfoFromServerThreadInfo,
   threadUIName,
   threadInfoFromRawThreadInfo,
   threadTypeDescriptions,
   memberHasAdminPowers,
   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,
 };
diff --git a/web/chat/chat-input-bar.react.js b/web/chat/chat-input-bar.react.js
index 723eb71e7..03ca0c4e4 100644
--- a/web/chat/chat-input-bar.react.js
+++ b/web/chat/chat-input-bar.react.js
@@ -1,692 +1,691 @@
 // @flow
 
 import invariant from 'invariant';
 import _difference from 'lodash/fp/difference.js';
 import * as React from 'react';
 
 import {
   joinThreadActionTypes,
   newThreadActionTypes,
   useJoinThread,
 } from 'lib/actions/thread-actions.js';
 import SWMansionIcon from 'lib/components/swmansion-icon.react.js';
 import {
   useChatMentionContext,
   useThreadChatMentionCandidates,
 } from 'lib/hooks/chat-mention-hooks.js';
 import { createLoadingStatusSelector } from 'lib/selectors/loading-selectors.js';
 import { threadInfoSelector } from 'lib/selectors/thread-selectors.js';
 import {
   getTypeaheadRegexMatches,
   type MentionTypeaheadSuggestionItem,
   type TypeaheadMatchedStrings,
   useMentionTypeaheadChatSuggestions,
   useMentionTypeaheadUserSuggestions,
   useUserMentionsCandidates,
 } from 'lib/shared/mention-utils.js';
 import { trimMessage, getNextLocalID } from 'lib/shared/message-utils.js';
 import {
   checkIfDefaultMembersAreVoiced,
   threadActualMembers,
-  threadFrozenDueToViewerBlock,
+  useThreadFrozenDueToViewerBlock,
   useThreadHasPermission,
   viewerIsMember,
 } from 'lib/shared/thread-utils.js';
 import type { CalendarQuery } from 'lib/types/entry-types.js';
 import type { LoadingStatus } from 'lib/types/loading-types.js';
 import { messageTypes } from 'lib/types/message-types-enum.js';
 import type { ThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { threadPermissions } from 'lib/types/thread-permission-types.js';
 import {
   type ClientThreadJoinRequest,
   type ThreadJoinPayload,
 } from 'lib/types/thread-types.js';
-import { type UserInfos } from 'lib/types/user-types.js';
 import {
   type DispatchActionPromise,
   useDispatchActionPromise,
 } from 'lib/utils/redux-promise-utils.js';
 
 import css from './chat-input-bar.css';
 import TypeaheadTooltip from './typeahead-tooltip.react.js';
 import Button from '../components/button.react.js';
 import {
   type InputState,
   type PendingMultimediaUpload,
 } from '../input/input-state.js';
 import LoadingIndicator from '../loading-indicator.react.js';
 import { allowedMimeTypeString } from '../media/file-utils.js';
 import Multimedia from '../media/multimedia.react.js';
 import { useSelector } from '../redux/redux-utils.js';
 import { nonThreadCalendarQuery } from '../selectors/nav-selectors.js';
 import {
   getMentionTypeaheadTooltipActions,
   getMentionTypeaheadTooltipButtons,
   webMentionTypeaheadRegex,
 } from '../utils/typeahead-utils.js';
 
 type BaseProps = {
   +threadInfo: ThreadInfo,
   +inputState: InputState,
 };
 type Props = {
   ...BaseProps,
   +viewerID: ?string,
   +joinThreadLoadingStatus: LoadingStatus,
   +threadCreationInProgress: boolean,
   +calendarQuery: () => CalendarQuery,
   +isThreadActive: boolean,
-  +userInfos: UserInfos,
   +dispatchActionPromise: DispatchActionPromise,
   +joinThread: (request: ClientThreadJoinRequest) => Promise<ThreadJoinPayload>,
   +typeaheadMatchedStrings: ?TypeaheadMatchedStrings,
   +suggestions: $ReadOnlyArray<MentionTypeaheadSuggestionItem>,
   +parentThreadInfo: ?ThreadInfo,
-  +communityThreadInfo: ?ThreadInfo,
   +currentUserIsVoiced: boolean,
   +currentUserCanJoinThread: boolean,
+  +threadFrozen: boolean,
 };
 
 class ChatInputBar extends React.PureComponent<Props> {
   textarea: ?HTMLTextAreaElement;
   multimediaInput: ?HTMLInputElement;
 
   componentDidMount() {
     this.updateHeight();
     if (this.props.isThreadActive) {
       this.addReplyListener();
     }
   }
 
   componentWillUnmount() {
     if (this.props.isThreadActive) {
       this.removeReplyListener();
     }
   }
 
   componentDidUpdate(prevProps: Props) {
     if (this.props.isThreadActive && !prevProps.isThreadActive) {
       this.addReplyListener();
     } else if (!this.props.isThreadActive && prevProps.isThreadActive) {
       this.removeReplyListener();
     }
 
     const { inputState } = this.props;
     const prevInputState = prevProps.inputState;
     if (inputState.draft !== prevInputState.draft) {
       this.updateHeight();
     }
 
     if (
       inputState.draft !== prevInputState.draft ||
       inputState.textCursorPosition !== prevInputState.textCursorPosition
     ) {
       inputState.setTypeaheadState({
         canBeVisible: true,
       });
     }
 
     const curUploadIDs = ChatInputBar.unassignedUploadIDs(
       inputState.pendingUploads,
     );
     const prevUploadIDs = ChatInputBar.unassignedUploadIDs(
       prevInputState.pendingUploads,
     );
     const { multimediaInput, textarea } = this;
     if (
       multimediaInput &&
       _difference(prevUploadIDs)(curUploadIDs).length > 0
     ) {
       // Whenever a pending upload is removed, we reset the file
       // HTMLInputElement's value field, so that if the same upload occurs again
       // the onChange call doesn't get filtered
       multimediaInput.value = '';
     } else if (
       textarea &&
       _difference(curUploadIDs)(prevUploadIDs).length > 0
     ) {
       // Whenever a pending upload is added, we focus the textarea
       textarea.focus();
       return;
     }
 
     if (
       (this.props.threadInfo.id !== prevProps.threadInfo.id ||
         (inputState.textCursorPosition !== prevInputState.textCursorPosition &&
           this.textarea?.selectionStart === this.textarea?.selectionEnd)) &&
       this.textarea
     ) {
       this.textarea.focus();
 
       this.textarea?.setSelectionRange(
         inputState.textCursorPosition,
         inputState.textCursorPosition,
         'none',
       );
     }
   }
 
   static unassignedUploadIDs(
     pendingUploads: $ReadOnlyArray<PendingMultimediaUpload>,
   ): Array<string> {
     return pendingUploads
       .filter(
         (pendingUpload: PendingMultimediaUpload) => !pendingUpload.messageID,
       )
       .map((pendingUpload: PendingMultimediaUpload) => pendingUpload.localID);
   }
 
   updateHeight() {
     const textarea = this.textarea;
     if (textarea) {
       textarea.style.height = 'auto';
       const newHeight = Math.min(textarea.scrollHeight, 150);
       textarea.style.height = `${newHeight}px`;
     }
   }
 
   addReplyListener() {
     invariant(
       this.props.inputState,
       'inputState should be set in addReplyListener',
     );
     this.props.inputState.addReplyListener(this.focusAndUpdateText);
   }
 
   removeReplyListener() {
     invariant(
       this.props.inputState,
       'inputState should be set in removeReplyListener',
     );
     this.props.inputState.removeReplyListener(this.focusAndUpdateText);
   }
 
   render(): React.Node {
     const isMember = viewerIsMember(this.props.threadInfo);
 
     let joinButton = null;
     if (
       !isMember &&
       this.props.currentUserCanJoinThread &&
       !this.props.threadCreationInProgress
     ) {
       let buttonContent;
       if (this.props.joinThreadLoadingStatus === 'loading') {
         buttonContent = (
           <LoadingIndicator
             status={this.props.joinThreadLoadingStatus}
             size="medium"
             color="white"
           />
         );
       } else {
         buttonContent = (
           <>
             <SWMansionIcon icon="plus" size={24} />
             <p className={css.joinButtonText}>Join Chat</p>
           </>
         );
       }
       joinButton = (
         <div className={css.joinButtonContainer}>
           <Button
             variant="filled"
             buttonColor={{ backgroundColor: `#${this.props.threadInfo.color}` }}
             onClick={this.onClickJoin}
           >
             {buttonContent}
           </Button>
         </div>
       );
     }
 
     const { pendingUploads, cancelPendingUpload } = this.props.inputState;
     const multimediaPreviews = pendingUploads.map(pendingUpload => {
       const { uri, mediaType, thumbHash, dimensions } = pendingUpload;
       let mediaSource = { thumbHash, dimensions };
       if (mediaType !== 'encrypted_photo' && mediaType !== 'encrypted_video') {
         mediaSource = {
           ...mediaSource,
           type: mediaType,
           uri,
           thumbnailURI: null,
         };
       } else {
         const { encryptionKey } = pendingUpload;
         invariant(
           encryptionKey,
           'encryptionKey should be set for encrypted media',
         );
         mediaSource = {
           ...mediaSource,
           type: mediaType,
           blobURI: uri,
           encryptionKey,
           thumbnailBlobURI: null,
           thumbnailEncryptionKey: null,
         };
       }
       return (
         <Multimedia
           mediaSource={mediaSource}
           pendingUpload={pendingUpload}
           remove={cancelPendingUpload}
           multimediaCSSClass={css.multimedia}
           multimediaImageCSSClass={css.multimediaImage}
           key={pendingUpload.localID}
         />
       );
     });
     const previews =
       multimediaPreviews.length > 0 ? (
         <div className={css.previews}>{multimediaPreviews}</div>
       ) : null;
 
     let content;
     // If the thread is created by somebody else while the viewer is attempting
     // to create it, the threadInfo might be modified in-place and won't
     // list the viewer as a member, which will end up hiding the input. In
     // this case, we will assume that our creation action will get translated,
     // into a join and as long as members are voiced, we can show the input.
     const defaultMembersAreVoiced = checkIfDefaultMembersAreVoiced(
       this.props.threadInfo,
     );
 
     let sendButton;
     if (this.props.inputState.draft.length) {
       sendButton = (
         <a onClick={this.onSend} className={css.sendButton}>
           <SWMansionIcon
             icon="send-2"
             size={22}
             color={`#${this.props.threadInfo.color}`}
           />
         </a>
       );
     }
 
     if (
       this.props.currentUserIsVoiced ||
       (this.props.threadCreationInProgress && defaultMembersAreVoiced)
     ) {
       content = (
         <div className={css.inputBarWrapper}>
           <a className={css.multimediaUpload} onClick={this.onMultimediaClick}>
             <input
               type="file"
               onChange={this.onMultimediaFileChange}
               ref={this.multimediaInputRef}
               accept={allowedMimeTypeString}
               multiple
             />
             <SWMansionIcon
               icon="image-1"
               size={22}
               color={`#${this.props.threadInfo.color}`}
               disableFill
             />
           </a>
           <div className={css.inputBarTextInput}>
             <textarea
               rows="1"
               placeholder="Type your message"
               value={this.props.inputState.draft}
               onChange={this.onChangeMessageText}
               onKeyDown={this.onKeyDown}
               onClick={this.onClickTextarea}
               onSelect={this.onSelectTextarea}
               ref={this.textareaRef}
               autoFocus
             />
           </div>
           {sendButton}
         </div>
       );
     } else if (
-      threadFrozenDueToViewerBlock(
-        this.props.threadInfo,
-        this.props.communityThreadInfo,
-        this.props.viewerID,
-        this.props.userInfos,
-      ) &&
+      this.props.threadFrozen &&
       threadActualMembers(this.props.threadInfo.members).length === 2
     ) {
       content = (
         <span className={css.explanation}>
           You can&rsquo;t send messages to a user that you&rsquo;ve blocked.
         </span>
       );
     } else if (isMember) {
       content = (
         <span className={css.explanation}>
           You don&rsquo;t have permission to send messages.
         </span>
       );
     } else if (defaultMembersAreVoiced && this.props.currentUserCanJoinThread) {
       content = null;
     } else {
       content = (
         <span className={css.explanation}>
           You don&rsquo;t have permission to send messages.
         </span>
       );
     }
 
     let typeaheadTooltip;
     if (
       this.props.inputState.typeaheadState.canBeVisible &&
       this.props.suggestions.length > 0 &&
       this.props.typeaheadMatchedStrings &&
       this.textarea
     ) {
       typeaheadTooltip = (
         <TypeaheadTooltip
           inputState={this.props.inputState}
           textarea={this.textarea}
           matchedStrings={this.props.typeaheadMatchedStrings}
           suggestions={this.props.suggestions}
           typeaheadTooltipActionsGetter={getMentionTypeaheadTooltipActions}
           typeaheadTooltipButtonsGetter={getMentionTypeaheadTooltipButtons}
         />
       );
     }
 
     return (
       <div className={css.inputBar}>
         {joinButton}
         {previews}
         {content}
         {typeaheadTooltip}
       </div>
     );
   }
 
   textareaRef = (textarea: ?HTMLTextAreaElement) => {
     this.textarea = textarea;
     if (textarea) {
       textarea.focus();
     }
   };
 
   onChangeMessageText = (event: SyntheticEvent<HTMLTextAreaElement>) => {
     this.props.inputState.setDraft(event.currentTarget.value);
     this.props.inputState.setTextCursorPosition(
       event.currentTarget.selectionStart,
     );
   };
 
   onClickTextarea = (event: SyntheticEvent<HTMLTextAreaElement>) => {
     this.props.inputState.setTextCursorPosition(
       event.currentTarget.selectionStart,
     );
   };
 
   onSelectTextarea = (event: SyntheticEvent<HTMLTextAreaElement>) => {
     this.props.inputState.setTextCursorPosition(
       event.currentTarget.selectionStart,
     );
   };
 
   focusAndUpdateText = (text: string) => {
     // We need to call focus() first on Safari, otherwise the cursor
     // ends up at the start instead of the end for some reason
     const { textarea } = this;
     invariant(textarea, 'textarea should be set');
     textarea.focus();
 
     // We reset the textarea to an empty string at the start so that the cursor
     // always ends up at the end, even if the text doesn't actually change
     textarea.value = '';
     const currentText = this.props.inputState.draft;
     if (!currentText.startsWith(text)) {
       const prependedText = text.concat(currentText);
       this.props.inputState.setDraft(prependedText);
       textarea.value = prependedText;
     } else {
       textarea.value = currentText;
     }
 
     // The above strategies make sure the cursor is at the end,
     // but we also need to make sure that we're scrolled to the bottom
     textarea.scrollTop = textarea.scrollHeight;
   };
 
   onKeyDown = (event: SyntheticKeyboardEvent<HTMLTextAreaElement>) => {
     const { accept, close, moveChoiceUp, moveChoiceDown } =
       this.props.inputState.typeaheadState;
 
     const actions = {
       Enter: accept,
       Tab: accept,
       ArrowDown: moveChoiceDown,
       ArrowUp: moveChoiceUp,
       Escape: close,
     };
 
     if (
       this.props.inputState.typeaheadState.canBeVisible &&
       actions[event.key]
     ) {
       event.preventDefault();
       actions[event.key]();
     } else if (event.key === 'Enter' && !event.shiftKey) {
       event.preventDefault();
       this.send();
     }
   };
 
   onSend = (event: SyntheticEvent<HTMLAnchorElement>) => {
     event.preventDefault();
     this.send();
   };
 
   send() {
     const text = trimMessage(this.props.inputState.draft);
     if (text) {
       this.dispatchTextMessageAction(text);
     }
     if (this.props.inputState.pendingUploads.length > 0) {
       this.props.inputState.createMultimediaMessage(this.props.threadInfo);
     }
   }
 
   dispatchTextMessageAction(text: string) {
     this.props.inputState.setDraft('');
 
     const localID = getNextLocalID();
     const creatorID = this.props.viewerID;
     invariant(creatorID, 'should have viewer ID in order to send a message');
 
     void this.props.inputState.sendTextMessage(
       {
         type: messageTypes.TEXT,
         localID,
         threadID: this.props.threadInfo.id,
         text,
         creatorID,
         time: Date.now(),
       },
       this.props.threadInfo,
       this.props.parentThreadInfo,
     );
   }
 
   multimediaInputRef = (multimediaInput: ?HTMLInputElement) => {
     this.multimediaInput = multimediaInput;
   };
 
   onMultimediaClick = () => {
     if (this.multimediaInput) {
       this.multimediaInput.click();
     }
   };
 
   onMultimediaFileChange = async (
     event: SyntheticInputEvent<HTMLInputElement>,
   ) => {
     const result = await this.props.inputState.appendFiles(
       this.props.threadInfo,
       [...event.target.files],
     );
     if (!result && this.multimediaInput) {
       this.multimediaInput.value = '';
     }
   };
 
   onClickJoin = () => {
     void this.props.dispatchActionPromise(
       joinThreadActionTypes,
       this.joinAction(),
     );
   };
 
   async joinAction(): Promise<ThreadJoinPayload> {
     const query = this.props.calendarQuery();
     return await this.props.joinThread({
       threadID: this.props.threadInfo.id,
       calendarQuery: {
         startDate: query.startDate,
         endDate: query.endDate,
         filters: [
           ...query.filters,
           { type: 'threads', threadIDs: [this.props.threadInfo.id] },
         ],
       },
     });
   }
 }
 
 const joinThreadLoadingStatusSelector = createLoadingStatusSelector(
   joinThreadActionTypes,
 );
 const createThreadLoadingStatusSelector =
   createLoadingStatusSelector(newThreadActionTypes);
 
 const ConnectedChatInputBar: React.ComponentType<BaseProps> =
   React.memo<BaseProps>(function ConnectedChatInputBar(props) {
     const viewerID = useSelector(
       state => state.currentUserInfo && state.currentUserInfo.id,
     );
     const isThreadActive = useSelector(
       state => props.threadInfo.id === state.navInfo.activeChatThreadID,
     );
     const userInfos = useSelector(state => state.userStore.userInfos);
     const joinThreadLoadingStatus = useSelector(
       joinThreadLoadingStatusSelector,
     );
     const createThreadLoadingStatus = useSelector(
       createThreadLoadingStatusSelector,
     );
     const threadCreationInProgress = createThreadLoadingStatus === 'loading';
     const calendarQuery = useSelector(nonThreadCalendarQuery);
     const dispatchActionPromise = useDispatchActionPromise();
     const callJoinThread = useJoinThread();
     const { getChatMentionSearchIndex } = useChatMentionContext();
     const chatMentionSearchIndex = getChatMentionSearchIndex(props.threadInfo);
 
     const { parentThreadID, community } = props.threadInfo;
     const parentThreadInfo = useSelector(state =>
       parentThreadID ? threadInfoSelector(state)[parentThreadID] : null,
     );
 
     const communityThreadInfo = useSelector(state =>
       community ? threadInfoSelector(state)[community] : null,
     );
 
+    const threadFrozen = useThreadFrozenDueToViewerBlock(
+      props.threadInfo,
+      communityThreadInfo,
+      viewerID,
+      userInfos,
+    );
+
     const currentUserIsVoiced = useThreadHasPermission(
       props.threadInfo,
       threadPermissions.VOICED,
     );
 
     const currentUserCanJoinThread = useThreadHasPermission(
       props.threadInfo,
       threadPermissions.JOIN_THREAD,
     );
 
     const userMentionsCandidates = useUserMentionsCandidates(
       props.threadInfo,
       parentThreadInfo,
     );
 
     const chatMentionCandidates = useThreadChatMentionCandidates(
       props.threadInfo,
     );
 
     const typeaheadRegexMatches = React.useMemo(
       () =>
         getTypeaheadRegexMatches(
           props.inputState.draft,
           {
             start: props.inputState.textCursorPosition,
             end: props.inputState.textCursorPosition,
           },
           webMentionTypeaheadRegex,
         ),
       [props.inputState.textCursorPosition, props.inputState.draft],
     );
 
     const typeaheadMatchedStrings: ?TypeaheadMatchedStrings =
       React.useMemo(() => {
         if (typeaheadRegexMatches === null) {
           return null;
         }
         return {
           textBeforeAtSymbol: typeaheadRegexMatches.groups?.textPrefix ?? '',
           query: typeaheadRegexMatches.groups?.mentionText ?? '',
         };
       }, [typeaheadRegexMatches]);
 
     React.useEffect(() => {
       if (props.inputState.typeaheadState.keepUpdatingThreadMembers) {
         const setter = props.inputState.setTypeaheadState;
         setter({
           frozenUserMentionsCandidates: userMentionsCandidates,
           frozenChatMentionsCandidates: chatMentionCandidates,
         });
       }
     }, [
       userMentionsCandidates,
       props.inputState.setTypeaheadState,
       props.inputState.typeaheadState.keepUpdatingThreadMembers,
       chatMentionCandidates,
     ]);
 
     const suggestedUsers = useMentionTypeaheadUserSuggestions(
       props.inputState.typeaheadState.frozenUserMentionsCandidates,
       typeaheadMatchedStrings,
     );
 
     const suggestedChats = useMentionTypeaheadChatSuggestions(
       chatMentionSearchIndex,
       props.inputState.typeaheadState.frozenChatMentionsCandidates,
       typeaheadMatchedStrings,
     );
 
     const suggestions: $ReadOnlyArray<MentionTypeaheadSuggestionItem> =
       React.useMemo(
         () => [...suggestedUsers, ...suggestedChats],
         [suggestedUsers, suggestedChats],
       );
 
     return (
       <ChatInputBar
         {...props}
         viewerID={viewerID}
         joinThreadLoadingStatus={joinThreadLoadingStatus}
         threadCreationInProgress={threadCreationInProgress}
         calendarQuery={calendarQuery}
         isThreadActive={isThreadActive}
-        userInfos={userInfos}
         dispatchActionPromise={dispatchActionPromise}
         joinThread={callJoinThread}
         typeaheadMatchedStrings={typeaheadMatchedStrings}
         suggestions={suggestions}
         parentThreadInfo={parentThreadInfo}
-        communityThreadInfo={communityThreadInfo}
         currentUserIsVoiced={currentUserIsVoiced}
         currentUserCanJoinThread={currentUserCanJoinThread}
+        threadFrozen={threadFrozen}
       />
     );
   });
 
 export default ConnectedChatInputBar;