"Communities of so-called “amateur experts” linked together by shared interests are the bread and butter of Wikipedia. The online encyclopedia actively encourages editors to congregate in “projects” and “portals” covering hundreds of articles that all fall under a single broad topic. ... So while it's easy to lament the dangers of the Wikipedia gun lobby, it is important to remember that groups with competing worldviews are what fuel the crowdsourced encyclopedia – where the question of what is true is always secondary to the question of what the community of different users can agree on as being true."