I got a request via email to purge the history records of our latest goatse.cx vandal, lest some poor unsuspecting wikipedian later come across them by accident. While there may be arguments for keeping such a historical record, I think in this case they are outweighed by the benefits of just deleting them. I did a database backup, just in case we get subpoenaed to produce them or something, and then I removed them. The banned IP list clearly shows what happened, when, and why, so we aren't losing that information, just 54 edit records that were all reverted (interstingly, he also seems to have made exactly one legitimate edit, which is still here). I thought the list should know when things like that are done in case there's some serious objection to it.