Heh, talk to Goat. He will tell you that VIPs and Donators don't get special treatment when it comes to moderation. That being said, I'd imagine it has to do with the logic, that the majority of donators and VIPs aren't going to pay the money to get the title, and then cause trouble and get themselves banned. They have a financial stake in their account, so it would make sense that they would be more conciencious.

That being said, Satoshi is the only person who gets special consideration. It is strictly against the rules for anyone to touch Satoshi's posts, not that anyone would want to.