I'm in a mega guild, so guild chat is used a lot for group finding. It would be amazing if this could at the very least scan the guild chat for potential groups/invites, as well as broadcast LFM messages there too.

Perhaps separating the scanning and broadcasting options would be beneficial, as some might not want to broadcast in guild while they do want to broadcast in LookingForGroup.

Scanning the guild chat should be easy. As for the broadcast one possible solution would be to have separate buttons for the broadcast window that allow the player to decide whether to post to LFG, guild chat or both.