The only realistic reason for someone to purchase an account would be to scam others, period.
I considered buying accounts to rent the signatures.
I haven't done it yet because I don't think it's lucrative enough, but it might make sense anyway.
We are skipping over the real issue here, the complicit nature of the mods to allow the scams, extortion, blackmailing and theft's to continue.
We know mods don't want it to happen. Unfortunately some people just are not good people ... simple as that. With coin purchases escrow is important. Escrow.... escrow.... escrow.