I just wanted to share this story with you guys.
I have a friend, who was a rapidshare backdoor seller, whos been conning people on the net. His trick is he buys  long term account from Rapidshare via Paypal etc, then he sells them back at ridiculous cheap price on the net. In every of his threads, he will put big bold letter "Please change password,email and security lock. Once you changed them you will be responsible for your account". And yes, he let them get hold of the accounts, let them changed whatever his customers want. After 1 or 2 days, he will email Rapidshare and tell them that his account has been hacked and request for password reset. He will show Rapidshare the paypal transaction to validate his claims. And most of the time, Rapidshare will reset the password in 1-2days.
He stopped doing this recently, maybe he feels bad cheating money like this. But I tell, he has cheated a lot of money this way. So be warned, and always becareful when buying backdoor account. Peace.