Why is he not so smart? If you look at his transactions he must be some kind of whale to bet 0.50 BTC just like that. He won over 1 BTC in that bet alone.
Most of the other players are only betting like $5 or $10 at a time but he instead is betting big.
He is a good trader, but he needs to remember never double spend here, oterwise his money will be confiscated. We need to follow the site's rules strictly.
Yes, who use double spend tx is cheater. I got red trust because caught cheater!