Good tip: don't trust the "trust system" because scammers can get a green score very easy.
People buy and sell accounts around here.
I know newbies that I would trust over hero and legend accounts. Use your own judgment when dealing with people and always do your homework before sending any large amount to anyone.

There is an easy way to ensure you are not dealing with a hacked/stolen/bought account. Ask for a signed message from an address from long ago, this way you are almost 100% sure that he is the real owner.