What's new
Replacing cf.AddMessage puts an insecure function where secure code reads it. Blizzard's Group Finder event handlers print via ChatFrameUtil.DisplaySystemMessageInPrimary -> ChatFrame:AddMessage, tainting the execution; the subsequent LFGList results update then hits "attempt to compare a secret number value (execution tainted by 'ClickLinks')" at LFGList.lua:3236 (observed on 12.0.7).
URLs in normal chat events stay clickable through the existing taint-safe CHAT_MSG_* filters; only direct AddMessage writes (guild MOTD, addon prints) lose clickability, which is unavoidable - there is no taint-safe way to modify those. The Communities frame hook is unchanged.
This mod has no additional files