I think that every night/morning. "Hmmmmmm this would be a great time for someone to post something interesting LOL. I don't try to start trouble, but hey, some people ask for it!
Maybe they're really here, but incognito. They have ordinary alter-egos, and then when someone screws up... WHAM! Terrie Lacy tears off the mild-mannered duck avatar and slams you against the wall!!!