It seems that today's tooltip on XKCD (Wikipedia trivia: if you take any article, click on the first link in the article text not in parentheses or italics, and then repeat, you will eventually end up at "Philosophy".) is causing people to edit Wikipedia articles - not for correctness - but to break the loop to "Philosophy".http://en.wikipedia.org/w/index.php?title=Mathematics&action=history
http://en.wikipedia.org/w/index.php?title=Mathematics&action=historysubmit&diff=430824661&oldid=430824276
http://xkcd.com/903/