In terms of appearance, WordPress is one step up from a Nigerian scam. It's suitable for the ramblings of a madman, or the selling of worthless ebooks.
For example, MATI has a WordPress site.
Don't even bother then, there's no point. I don't think very many people are interested in your 2-4 favorite lolcows specifically. That sounds really boring. Unless it's dedicated to
@Null. That might actually work, but it seems self-limiting.
If you want any of your existing userbase to care, it should be open to any content relating to these farms,
those other farms, lolcows of all kinds (including politically-involved people and Nigerian prices, but only if they're funny), and anything relating to the above. It should work like
ED, with articles on
people,
things,
concepts, and
historical events, and organized into categories. Unlike ED, the content should be written with a serious tone and to a standard, like the
CWCki.
If you're concerned about spam, you can limit wiki user accounts to only people who actually post here. You still absolutely need wiki jannies, and they need to
know what they're doing.