Yes, it happens to every gambler who spends a lot of money. That is how VIP tiers are defined, based on how much you spend. There is no way for them (or anyone) to understand the customer's state of mind. Should it be illegal for retailers to offer customers discounts? Compulsive shopping is significantly more common than gambling addiction, do retailers target those customers?
If you never want to gamble, you tell the state regulator you never want to gamble and you will be unable to use any site.