Thanks for confirming. But is it possible that many messages of other people in his thread also got removed? The forum software doesn't allow for normal users to remove other people's posts, am I right?
Nobody can delete other people's posts except mods/admins. I don't know anything about other people's posts being deleted (if they were), only theymos could answer that.
I don't have proof if it is true or not. I heard it somewhere, but I assume it is not true until proven otherwise.