What the Hell is going on? Profit from 1,8% to -0,08 in a short time. That just can't be luck...
Its only because he has such as massive bankroll. I think he must have around 10% to 50% of the site bankroll perhaps. His luck can eat away at the profits because his betting so much. Remember we made profits based on many smaller bets.
So we need some more people to invest
Well its little worse because we need more people betting to allow the house edge to take advantage. We have not had enough bitcoin bet through the system to really get a true house edge.
The fix is this: Get much more bitcoin bet through the system (Get more people betting) and reduce the maximum bet. 1% is far too large. Its possible to have enough of a good run over a few hundred large bets to eat all the bankroll away, the solution is reduce the max and then they have to bet 10 times as many rolls, allowing the house edge to become more apparent.