If a scammer wanna scam he will do it with bought accounts or without them, also i dont think that a hero member with green trust will sell his account and thats the only way to scam a bigger amount
You don't have to be a hero member with green trust to be trusted. I've seen people allegedly selling a Senior with green trust. They could surely use that account to play out a few decent, simultaneous cons.
And that's why the feedback system shouldn't be considered definitive and used just as a guide. It's not that difficult to effectively "buy" or acquire positive trust around here. It's unlikely that the person selling the account is going to be an active and valued member of the community regardless of the feedback so if you're not familar with that user you should be cautious, and as I stated above, if you use escrow for every trade then you should be fine.
I was thinking more if the bought account with trust were to act as escrow and then con.
That is actually one of the more obvious reasons as to why the sale of accounts should not be allowed. Other reasons include giving the new account holder solid opportunities to con an acquaintance of the original account owner who was not informed of the sale, con lenders by flaunting the account's positive rating and past trading history, use the social influence garnered by the account over time in order to promote a scam, and so on and so forth. I have seen no other discussion board, website or service where the sale of accounts was even considered anything but wrong.
I understand that it would be difficult to detect the transfer of an account from one person to another. However, if a member starts an auction thread for his/her account, I believe that swift and decisive action has to be taken against the act since the evidence is readily available and redundantly archived.
Banning the sale of accounts won't stop this. And accounts are almost always sold from brand new newbie accounts to save them from being tarnished and negbombed. Most accounts are left negative feedback if they're found out to be sold or are trying to sell an account.
Although selling accounts isn't plausible, but nor the mods, nor the admin can stop it. You ban the IP, they use a VPN, you ban the account, they'll get a new one. It's better when it's done openly, when people know the risk they might be dealing with a sold account, rather than secretly, when the user imagines the account belongs to the original member.
Perhaps a mechanism for acknowledging sold accounts would be useful? Ideally not through leaving trust.
What sort of mechanism and how would that work exactly? Most deals go on behind closed doors so it's impossible to know.