But here the OP is talking about the investment in casino/gambling websites which is a much risky way to invest our bitcoins. We are not sure that we will earn in there by investing our bitcoins for the sites. If someone will start a personal business then with that he will be sure that with his struggle he will get the success but investing in others business especially in gambling is taking a risk.
Well several people has invested into the bankroll of the well know casinos, and most of them had made already roi, i dont know how safety its to earn a 10% from a dice or gambling company as looks its being possible, but its insane, looks he can double his coins into 2 months as long it keep with high investment.
10% is not normal for a week. Next week can be -10%. I would expect 30-40% yearly on a casino.
Yeah, 10% interest per week is awesome though. If i were you, i will took all my bitcoins out from that, becuase i think next week will be mines. 10% per week is so big interest imo.