If a rule like this WAS created I think it would only be fair to say that ALL socks have to be tagged and show who their owners are. Which is pointless and ridiculous. Mods are people, too. If they want to post not as themselves, who cares? They aren't going to ban you with a sock. As jp said, mods lurk, and will ban while lurking. posting with a sock is pretty much the same thing. Now, if the mod was breaking rules with the sock by baiting you or something, that's a different story. Personally, if i was a mod, I;d post with an anonymous sock so that I could sometimes post and not worry about my post being scrutinized and checked for VIP-standard posting.