I think that casinos hate such players who have 100% control over themselves, and those gamblers who do not take casinos seriously at all, seeing them only as temporary entertainment.
This is the key to the correct understanding of gambling. And as you correctly wrote - you cannot observe the frequency of visits to an online or physical casino. You only need to occasionally visit this place for entertainment, and then the gambler will never develop a habit of constantly visiting the casino
Yes, definitely things happen because of that, I personally have always said something, when one has control over this type of things , the person is Successful , casinos love players who leave all their money there, in fact they give them everything, they offer dinners , L unches and even a day in the most Luxurious hotel in the city but it is because they leave a lot of money there , Obviously they are Respected clients and very beloved customers, because always the majority of their money supports the casino , the players who win the most, are Usually Banned, well at least this happens in physical casinos.