Ok, suddenly the casino you're playing asks you for proof of income to be able to withdraw your winnings and to keep your account in good standing, your bankroll every month is $500 and you provide proof of salary that you are making $500 net every month, will they accept that proof will they accept that you are putting all your salary for gambling, will this violate the principle of gamble for fun, because you are working to gamble based on your proof income.
I'm not sure about it but I don't think the gambling site will be that keen to review your expenses upon your issuance of Proof of Income. It's all a matter of self-principle. You yourself feel like you're doing too much and have begun to spend most if not all of your money in gambling. The casino could care less about where you put your money. They just need the proof of income to make sure you are not a robot or a hacker if I'm not mistaken. So as a for fun gambler, if you feel like you have already gone too far, so as to spend all your salary for gambling, maybe how the gambling site thinks of your expense report should be the least of your concern. You should have yourself checked to a therapist or a psychiatrist because that could be a defining sign you are addicted.