For those of you who are (as uncharitableWikipedians sometimes say) “clueless newbies,” Wikipedia is an online encyclopedia. But it is like no encyclopedia Diderot could have imagined. Instead of relying on experts to write articles according to their expertise, Wikipedia lets anyone write about anything.
Nowhere on the Internet does this free lunch logic hold more true than at Wikipedia, the free encyclopedia anyone can edit. Sure, it's monetarily free, but it costs you heaps in credibility and accuracy, as well as the time spent combing over information for instances of "jason is a faggit" and other assorted such delights hidden mid-paragraph here and there.