Have anyone profited out of dice in the short or long term. I have been trying the best and lost all, I can't leave it. Once after I loss I have gone beyond my ability. Finally as the wallet got emptied, I bought bitcoin particularly for betting and lost even the amount earned from my day job. I used to experience win, but at the end it is a loss. I miss the right time to stop and leave. 
That's the sad part not knowing how to leave and when to leave, before betting you should know all your expectation and part of that is when and how to leave the gambling site, if you don't know how to, you will keep on depositing until you have nothing left to deposit and you are in a losing side, and this is bad ways to gamble.
He can learn how to stop if he wants. Without having a big effort to know when to stop, he still remains in that circle, and he will spend more money to buy bitcoin and using for gambling. Maybe that is the problem for many gamblers, and many of us don't know when to stop because it just like we need one more roll to win big, but the truth is we are losing again and again.