A loser with too much time on their hands spending that time at the wikipedia editing pages and making changes to fit their own personal philosophy and politics. The loser may have wikipedia administrator powers and the ability to both change a page and then protect it from other changes.
Over at the wikipedia one administrator is keeping any mention of Lindsay Lohan and Britney Spears panty problems out of their wikipedia entries. It's one thing not to host the pics of the slits in question, but to keep out any mention? That's POV censorship and the act of a wiki nazi.