Alternatively, the site could let the users determine what it good. Users could "like" or "dislike" articles, and these likes and dislikes would affect the reputation of the publisher. The higher the publisher's reputation, the more likes, and the fewer dislikes and article has, the higher rank the article would get when being searched for, and articles with sufficiently low rankings would be hidden. Think Stack Exchange for science.

It could be expanded in many ways, for example by weighing likes and dislikes by high-status users more heavily than low-status ones, or by using numeric ratings instead.