This issue is being created to document why LFG automation was removed from the addon.
SendChatmessage() is the ONLY function which can be called from an addon to communicate with in-game channels. SendChatmessage() however can no longer be called by an addon, as per Blizz Restricted rules.

https://wowpedia.fandom.com/wiki/API_SendChatMessage
https://www.reddit.com/r/wowaddons/comments/da9gbz/help_sendchatmessage_doesnt_work_on_custom_chat/