I did some maths... and if the number is really fair, the average roll will give 2-3 cents... (If you would roll 100,000 times, it would probably be 2-3 cents average). How is this profitable for you? 2 cents would mean you have to get $20 per thousand visits to have enough money to pay your users... But how does that work? Really... I'm curious... Is it simply because most users lose it all in the Multiply BTC or is it some dark secret you don't want us to know?