I used to hook up with a guy who was 100% convinced that he could game the system. It had something to do with break frequencies from various services and certain time windows for playing. He won sometimes, but he obviously didn't talk much about his losses. He wasn't a very happy person, and I think gambling offered an easy release.
That's my big issue with gambling. It's a business preying on addicts leaving many in financial ruin, and overall they do nothing for society at large. Here in Sweden it is regulated, but you honestly don't notice it. There are so many internet casinos vanishing and cropping up on an almost daily basis. If you turn on the radio the adverts are like 40% online casinos, 40% sex toy sites, and 20% various services, like tyre shifting, glass repairs, etc.