Those places are about money. Play by the rules, which means spend money and lose money, and you’ll be fine. Threaten their pipeline into your wallet, and you can expect trouble.
casinos = leagalized “stealing” of one’s money (don’t patronize those places and you’re good as gold).
I'm not sure about your comment. Casinos generally like to promote big winners as long as they were due to luck. Big winners come back and lose, and they tell their friends who also generally lose. If everyone lost every time they entered a casino the casinos would be out of business in short order.
ML/NJ