It's been said that Microsoft is collecting alot of data right now for those with copied games and will ban on or around the Halo 3 beta. Why? Because they know theirs a possibility that alot of modders made a copy of Crackdown that contains the Halo 3 beta. It's believed that Microsoft will start using the new detection features around that date which explains why some may have had no issues with their current old hacked firmwares as of yet. Microsoft is known for not banning imediately and then doing a mass banning, so everyone must be very cautious.