(The Wikimedia Foundation hasn't clearly defined how you get to be a reviewer who can approve edits.)

This wiki-oligarchy presents its own sort of dangers. The movers and shakers of Wikipedia are largely hidden from public view and unaccountable for editorial decisions. It is fairly easy for one person to establish sovereignty over a less-trafficked page through sheer persistence and a solid command of the site's Byzantine rules for resolving disputes. For example, consider the curious case of sports writer Rick Reilly's affinity for tooth jokes, which my colleague Josh Levin chronicled last December. Levin's story made it into for Reilly's Wikipedia page, where it was removed by a user who turned out to be Reilly's PR representative. The page's edit history tells the rest of the story: Someone reinserted a reference to the tooth article, someone else removed it again, someone else added it back, and finally a user named Dayewalker, who has made well more than 1,000 edits on Wikipedia, weighed in: "[H]umorous personal analysis of his style from a dental perspective is undue, and unsuitable for an encyclopedia. Please discuss on talk page and try and gain consensus." No one took up the fight, and Reilly's page remains free of Levin's critique.

Oops, isn't that embarrassing........

What's embarrassing about the Rick Reilly article is the extent to which it's been used for character assassination.