You go to this site and deposit 0.01BTC. You accidentally click roll hi button when the multiplier was set to 10x, rolls a 99.99 and win 0.1BTC.
What will you do?
I would continue playing with the rest and see where it goes.
But even if you won that amount, or see where it goes.. what if the website doesnt even pay lol.
In reality though, its a losing balance.