Understanding Nothing

Dive Into OS X has relaunched, now with a wiki. Mark writes:

“The biggest conceptual hurdle of wikis is that there is absolutely no access control. Anyone could, in theory, sabotage the wiki … The only solution for this is community self-policing; thanks to the built-in revision history, deleted material can always be recalled, so inappropriate changes can be undone (by anyone). Of course, none of my readers would be so obnoxious, and in fact, several high-profile wikis that have run for years (like the Portland Pattern Repository ) have had surprisingly few problems with vandals. Vandalism, like copyright infringement, is a social problem. Please don’t vandalize the wiki.”