I think sometimes people ask to be scammed. Sorry dude I know you are the victim but always think that your trade is a scam and you have to check first? Please tell me why you made the trade with this guy using PayPal and send to friend option?

I see at first look 3 red flags:
- He is a newbie, nickname "sinner", email "cardi" (funny heh).

After a second look at post history of this account, you can say who this person is and what he is doing here from start. If there is nothing to find in bitcointalk just don't trade or do it only when you control the trade.

You can mark his trust red to warn other users.