Having discussed this with E1 we believe the main requirement is anonymity so we have achieved this by changing his name to remove anything that identifies him. Having discussed the question of mass deletion of posts with Steve we conclude that we simply cannot do that. It would break a lot of threads, remove completely some other threads - including posts from other people who might not want their posts removed - and potentially the board software isn’t up to it. As the rules say, making a post is deemed to be making it public, everyone has to keep in mind that it ain’t easy to make something un-public!