When it comes to any strategies, it's probably a good idea to stop listening to whoever is telling you this. No one in the public knows the algorithms of casinos, whether online or offline, and each is likely to have its own algorithm, making it difficult for outsiders to determine. Note that the casino itself never directly advertises itself as a place where you can get rich, it is done by bloggers, in fact indirectly
By the way, you are right about the fact that casinos almost never advertise themselves. Bloggers who have a huge audience are "responsible" for PR. It is even difficult to imagine the scale of deductions for such advertising. Most likely, the amounts there are quite large. This is one of the options for earning money in a casino. Attracting new people to this area has become a very common phenomenon. I have thought about this more than once when I see an affiliate program for a casino. If you have time and money, you can try yourself in this business.