We all know the risks when we break laws or contracts, if you get banned for breaking a user agreement, you knew it would happen. With that said, there is no reason to freak out over whether or not the ban will happen. It will happen or it won't. I know a few people who had legitimate copies of Halo3 before the release date, and they were not banned. MS might investigate, or they could just be trying to scare people, there is no telling, and we won't know until people get banned, if they do. It's a stupid thing to worry about.