I don't think this account has been bought or sold, this person told me that he's just rarely online and active on bitcointalk. He didn't even know that people can't get avatars anymore.
Maybe not yet, but looks like he's trying to sell it now:
https://bitcointalk.org/index.php?topic=848734.new#new 5btc lol.
some crazy ***** selling a Full Member account for 5BTC. ROFL
That person must be gone crazy who is looking to sell Full Member account for 5
BTC . Getting full member account is easy here. Just be a active poster, keep some patience and get your full member account.