Blizzard can right now take everything off your account, there wont be a thing you can do truth be told. Don't believe me? Actually read what you agreed to.
IMO all dupes including previous to april 2 should become BoA. It may not be the current owners fault, but that doesn't make it all the right. What will make this right to to get ride of/BoA all of them, then we can all have a level playing field. To me owning a dupe is no different then cheating, whether you knew it or not.