The map would stay online for awhile and in the mean time you would steal quite a few peoples accounts so once your account gets banned you could just use one of the stolen accounts to restart. You could then resell the accounts as they have all the games the blizzard games that player had attached to them (you could conceivably get like 3 games for resale)
ofc this all rellys on people being stupid and blizzard being slow so It would probably only work once or twice before blizz caght on.
And plz no one do this because if you do it will just make blizzard take away our powers. (I don't think anyone is seriously considering it just pointing that out)