I'm not sure where you're getting this idea from
Well, my bad then. I concluded based on the fact that a while ago I saw some users who had unrepaid loans running into several months after the requested duration. I didn't know it was still an active loan. I thought they defaulted. But it's ok now with your explanation.
18. Having multiple accounts and account sales are allowed, but account sales are discouraged.
A neutral tag is likely to be given to a bought account with reference feedback to the change in password or posting style. IMO a negative feedback or red tag may be given in cases where the new owner is suspected to have malicious intent.
There's a conflict of interest in the forum on account sales if we go by what @mrep said. If something is allowed, why is it discouraged then? It's a paradox. To the best of my perspicacity, account sales are deceitful. What it simply means is that someone is transfering not just ownership to another but reputation and trust. So, why would anyone want that if it's not to make others interacting with the said account think they still have the same owner and whatever reputation bestowed on that account. It's like a reputable bounty manager selling their account. Of course, unknowingly, hunters will still think it's the former owner on it, and then blindly trust the account.