Account selling is legal here in forum considering that, there is no rule about it. But that will make you a not to trust person and lot of DT will put a red tag on those accounts.

With regards to the selling of merit's and to the people that are going to buy, just imagine they are having a hard time receiving merit so if they are going to buy, their merit count will just be stuck on those number, they will need to buy again to earn more. The ranking will be very expensive to them, and the merit abuse will be so easy to see. They will  get a red tag doing that.