The gambling world is full of deception. And it comes not so much from the casinos, but from people who are unprincipled and deceitful, wanting to get money from naive gamblers.
Often they are trying to sell something, or teach, or sell a subscription to their channel to gamblers. Promising anything, and essentially hoping to get money for stupid strategies or advice, which are already freely available on the Internet.
Such guys are trying to make a cult of themselves, to become the most famous influencers, who then hope to be hired by the casino for advertising. Or supporters sponsors.