I knew about the already existing wiki, and I can't say I've found it particularly useful/interesting - I think it really needs to be expanded, and there needs to be more momentum behind it. However, this may be a bias, because there are a lot of very popular fandoms (HP, Buffy, etc) that I have never had anything to do with, so it's possible that the wiki represents them better than it does the fandoms I am involved with. Interest in these kinds of things can vary widely within and between different fandoms.

Even if it's acknowledged that they aren't within fandom, those outside fandom won't see it that way, and people are afraid of being misrepresented.

Very possibly. But if this is the case, then I agree with you - rather than bitching about it, why not form alliances and make compromises (to me, this is what life is about)? But I think that fandom has always had a tendency to divide into camps (and this is not a fandom thing per se - it's a human thing) - just look at the wank that has been generated in SGA, for example, about pairings! - and it should be expected that some people will take very strong stances against any fandom endeavour ever, not just projects like OTW. This kind of diversity I respect, although I do not respect it when things get pointlessly nasty.

the OTW is fairly new and can only work on so many projects at once, but I think they'd be open to more once they get their first few things done.

I agree. I think it is unfair to expect many things from OTW right away. Like any project - fandom or otherwise - things get more complex and offer more breadth and depth over time.