u'll still be banned, admins don't need to look at ur email address to know u're multi or not.
as stated on another thread, u'll need to have another account for BD facebook. So I don't think u'll want to make a colony on the world u're currently playing.
Unless you a multi-maker, well still they would do if you contest that you are not so they need to check, and just to make sure admins know that this could happen and check for multies in world ASAP! so the game dosent get ruined