something to greet new users, with the most commonly asked questions. Current members can contribute, wiki-style, with generous oversight from [name]Pam[/name] & [name]Linda[/name].
I think that’d be great…as a new member, I was wondering how you contribute to the website?
^ That’s their FAQ, although it’s not as you described. I like your idea though, I think it would improve the FAQ. Wiki-style might make it a target for trolls but sufficient moderation would help.