1. I'd support you, and I'd volunteer to be a host here as well.
I've done forum moderation on a couple of webboards, Smirking Chimp and Stripcreator. I've been debunking 9/11 conspiracy theories for nine years now, although there hasn't been a lot of new developments on that front. I'm very keen on stopping lies about Barack Obama and the Democrats.
I'm not sure we could get away from the endless parade, however. People hear something awful from whatever source and they're going to want answers. But what I think you're getting at is teaching people to find their own answers rather than just handing them one. That kind of thing would be a good sticky topic - Resources for Debunking or Before You Post thread that gives resources and a plea to do a search. Maybe videos of the last few American for Prosperity trash-talking exercises along with debunking as well.
Bolo "Descriptive Thread Titles Are Our Friends" Boffin