After reading all of these posts, I really have to wonder how they are detecting us.
M$ previously could not detect modified firmware. As far as I know they still can't, but you have to wonder, with all the recent bans, if M$ found a way to directly detect the firmware regardless of what games/media/stelth was used.
With my new knowlege of the situation I would say if your cache is clean, meaning that you have not played any unstelthed, prereleased games, or used bad media recently, and you have not been banned yet, you can problably reflash your console to the original unhacked firmware and avoid being banneed. If you do try this make sure you play offline for a while to clean the cache if needed.
This is just an observation in no way have I tested this because my unit is already banned. Just a thought that makes sense to me.
My friend has yet to be banned so we will put this to the test and I will post our results in a few days.