their username was UniversArtist. the account has since been deactivated, probably banned because they stole concept art from this p big game company. I also found that UniversArtist is one of many spam bots that join as many groups as they can:
Warning if you own/run groups, new bots foundI have blocked all usernames on the current list of bots (including UniversArtist in case they get their account back somehow) so we don't need to worry about them anymore