Some gamblers can never stop feeling cheated whenever they lose repeatedly and this leads to a feeling of resentment and unfairness.Gambling have the tendency to impart emotional reactions and regret.Blaming casinos is a way of self defence emotionally to avert their losses and it's been a lifestyle for a lot of gamblers.
There will always be a part of a gambler who thinks he is being cheated by the online casino, and I don't blame them because of the lack of RTP, many times. Let's say a gambler deposited 5000 and bet only 1 per roll. He should expect to be given back at least in the middle of the losses, but if nothing happens and the losing streak continues, this is where doubts and blame will arise.
The gambler will probably think that he is just being robbed and put the blame on the casino, but we all know that's part of their business, although there should be some consideration if they want their customer back. We could always just look for another online casino if that happens. Maybe they did tweak the house edge to their advantage. It just went overboard.