Hello, as I know, buying and selling bitcointalk accounts are not against the rules but account sales are discouraged.
Proof:
http://archive.li/uBpxVWhy he can offer this account without any problem?
Thanks for the explanation.
Anyone can offer the account he wish to be sold or auctioned since it is not against the forums rules but it is up to the default trust to decide to give him or not a neutral or a negative trust.