I dont think this is proof the account was sold, it is fairly good evidence it is for sale though.
Bruno has contributed a fairly decent amount to the community over the years and based upon the fact he is (trying) to sell his accounts he likely is in need of money. So I would ask both hilarious and darkstar if they want to actively prevent Bruno from raising money he likely needs by selling something he duly owns?
If that is truly the case, I am sure a few users would help him out to give/lend him some money?
He is trying to sell his account, not borrow against it, so he may not be in a position to repay what is given to him (IDK). Are you willing to contribute to the cause?
(ignoring the fact that begging is not allowed here) would you like it if you were asked for money by long standing members?