I think that if the OP write about it now - it was fixed. Of course it is possible that the OP lies, or uses some casino feature thinks that it is bug.
Anyway, if he tells us truth i can only applaud him - $8.500 per month are really good money. But the same time i`m sure that it is impossible to repeat it now, so i don`t cares about it.
There’s no way to verify this but one thing is for sure if this is true that he earns profit in bulk not in monthly basis since exploit on casino can be easily found it by the casino owner even back then since they can track who’s player consistently draining their funds.
If OP is really a successful hacker that abusing exploit then it’s possibly that he do this one time big time on different casino that offers same game with same security exploit because casino back then are just the same dice site.
The current situation here now is that nothing can be ascertain yet since OP himself is not giving the right clue on his stance, he knows the best for himself an what he is actually referring to from his post, there's this probability that from every of our guesses are also right, because we are only working by assumption base on what he made post on, but we are not sure how true or untrue everything under the situation is.