User blog comment:Dopp/Technical Update: July 19, 2011/@comment-3569803-20110721003636/@comment-1997905-20110721005103

I killed a hacker and stole his abilities.

Nosrsly, if you look at the diff you'll notice that the random gibberish contains multiple instances of "RTE form parser". That code is how the RTE makes everything look pretty, it's supposed to deparse it back into wikitext but occasionally it forgets and just publishes the gibberish. Another reason to always use source mode.