FYI, he can take your account back after you buy it. As long as the original account holder provides last 4 digits of CC or a picture of a used RP card, it will be revoked from you and returned to him.
As is true with the majority of game account sales, yet it's a huge market. I sense some sort of animosity here... or maybe you just randomly go around posting possible scam methods in threads... "he can take your money and not ship the package" ..that's a good one for a physical item...
This board brings no guarantees and is governed by a trust and reputation system, that is true for all items from video cards to game keys to gift cards and even services rendered. I have references who will verify my legitimate transactions of the same nature, and have various ways of assuring the buyer a safe deal.
That's about all the time I have, enjoy your day and happy bidding!