@surreality yeaaaaaaaah it seems like a double-edged sword. Vengeful morons could use it for the purposes for evil, but then again, I don't think we've had too many issues on MSB with people trying to make details/flak about other players permanent.
I guess it all comes down to who moderates it, and if something really screwed up gets posted on the wiki, if it can be wholly removed. I've been linked plenty of times to history entries on wikis that weren't the current state of the content, but a washed-over history entry containing the gossip-worthy stuff.