Does any one else believe this of Yahoo?

Looks like you've caught the attention of the resident troll. There's a guy who is fixated on 2012 and hates all Astronomy & Space Top Contributors. Since you've got the TC marker, you're in his radar. Another sign is getting 5 or more thumbs down within seconds of posting in certain questions. That means you've been flagged by his scripts. He keeps multiple user IDs just for that purpose, and as fast as Yahoo closes them down he creates new ones.