If there is a foul play, Devans would be quick to notice it but so far this is pretty much simple strategy that anyone can do. If you have 1 btc and you cashed out at 1.02 for 5 times, you will be getting 10 % of what you wagered and that is a good amount as well. The thing that makes this so special is that this guy wager with 300 btc and get more than 5 btc every single time
This WangTang guy has been doing this alot of time and managed to dodge the bullet so far. He is basically risking more than 300 btc for 1.02 . Sooner or later he might lose while he wager 300 btc
Well he had some bad luck as well, he lost 50 btc yesterday imagine if this is 300 btc