Wikipedia is the arbiter of truth on the internet. It's what settles arguments at bars. It supplies answers for the information snippets you see on your Google or Bing search results. It's the first stop for nearly everyone doing online research. The reason people rely on Wikipedia, despite its imperfections, is that every claim is supposed to have citations. Any sentence that isn't backed up with a credible source risks being slapped with the dreaded "citation needed" label.