@Future one of the places I provide peer support on is called “Drugs Forum” they have a user moderated model, one of the best ive ever seen. Essentially they created strict guidelines by which a post it to be measured and rated. All posts made are open for users to rate. Users can give from -x to +x (they use stars, each star has a value) and the rating a post receives is reflected in the profile of the user who made it.
Replies, can also be rated, and the values they receive are reflected in the profile of the user making them. Active users that create thoughtful, well made, and cited posts, get a lots of positive ratings that are reflected in thier status and profile, making it easy to spot good posts. Same is true in reverse, if the user is a habitual troll or posts erroneous information without proper citation, they get relegated into the basement, to be with the other trolls.
This community is perfect for that type of model, in my humble opinion.