IT is Bitmains fault because they can easily stop it by letting as many order as they want but people gets put in line based on when they actually pay, then after it is sold out, all unpaid orders get canceled.
I dont agree if bitmain place a restriction on the account. Some people can afford to have 10 miners and more in one go.
I agree if bitmain make no change delivery address so there will be no one selling un-paid account.
I totally agree with wheelz1200 that its OK if you risk your money by taking the order and sell it back.
Not some people that wake up earlier, have high speed internet, create many account and take most the goods that they CANNOT afford to pay it