The forum is now unusable via Tor. Almost all exit nodes are banned. Everytime I start Tor I have to hit "new identity" and try again over and over. It took 14 times to login to this session. You also have to change the MaxCircuitDirtiness or you will be banned by the time you hit "Submit" on your post.
Now that theymos is fixing things, please unban Tor exit nodes. If needs be I would pay towards a bounty to have this implemented.
I'd imagine its people that use Tor that end up getting IP Banned, not that Tor nodes were specifically targeted. I could be wrong though, but that is my best guess.