It struck me your Wikipedia experiences were extremely unusual. Perhaps owing more to the way you wished to interact with that community. I mean, there's certainly problems with Wikipedia, but the discussion page under your name is far more contentious than many controversial political pages.
But the space of wikis is large. For instance, you can have accounts which restrict access while still allowing a decent level peer review.
That anarchist FAQ was last updated in late 2000. When I look at major anarchist online resources, I tend to think they're ironically non-participatory (relative to many sites I visit), though I usually assume that's due to lack of time and resources.
But if I have time, I'll try the email address and hope it isn't a black hole... (Like the Institute for Anarchist Studies, for instance.)
Tayssir