You are always wise and have broad views. I absolutely agree with this, everything should be based on a specific case. Maybe it would be better if we could propose to the forum to ban trading accounts so that if someone buys an account then it is clear that it is a violation. Until now buying and selling accounts is still legal in the rules of this forum.
Banning of Bitcointalk account sales may never happen. If this was to happen, it should have been at the time the forum was hacked and several accounts stolen
The reason they won't ban the sales is here
Q: I saw a guy selling Bitcointalk accounts. Why is that allowed?
A: Since we can't effectively prevent these sales (proxies, TOR, sales on other forums), we don't because otherwise we would be giving the users a false sense of security.