Thanks for explanation now I understand better the things.
Generally you look for password and email changes. After this you can look whether the user had any recent successful trade history. This is not the case with this user. It's unfortunate that you've suffered a loss. Anyhow, I have tagged them.
It would be better to use an escrow regardless of the rank of the member you are making the deal with, because some of the accounts might be hacked or sold.
Definitely. This makes the trade 99% safer if we consider potential escrow exit scams (which are not likely with small amounts of money).
