This one is pretty easy. First make a list with a lot of gold seller sites. Check @ Bugmenot.com - login with these free web passwords to bypass compulsory registration for users, who use the addon for firefox and recklessly added their user name + password from the goldselling site into bugmenot.
Than using a proxy (You better do that ;P ) login with the taken user + password into the gold site and make your order I just recieved 10k gold using this method (i will keep the account i scammed for myself, got it in 3 trys). Hope you can catch account too Just be fast, cause i think that the passwords will be changed when the people realize what is happening ^^