As for legitimate users, probably the most useful thing to do would be ensuring that the TorBlock extension shows an understandable error message and sends people to a translatable page with instructions valid for all language editions of our projects with current poliecies (most projects will have none).
I think this would be a great improvement to the situation. I personally use Tor pretty regularly, but seldom go to Wikipedia when using Tor because I know I'll be frustrated if I try to fix something.
Up until this discussion, I had no idea it was possible to request an exemption to the Tor block.
Thank you, Derric Atzrott