But AFAIK when an account already changed hands, the account will get negative feedback just like this thread [1]
Is that a written rule?
It should vary from case to case. The alleged account is not hacked or sold account. Hacked or sold account deserves red paint. But, I don't think she deserves to get negative feedback. The account legitimately confesses the truth in the reputation section, and here you come to show your power. I understand you have your own opinion. But it doesn't make sense to me. FYI, My wife knows all my passwords, and I trust her. If I die, She will also have access to all my wallets and accounts.
If leaving negative feedback is wrong, then how about many DT members already leave negative feedback then? does they should changed his feedback to neutral?
Doesn't matter. You don't have to follow others. The accounts got negative feedback for changing hands and were sold, or hacked.