No one cares about someone's religion and them gambling, if the person is willing to do it themselves, why would anyone else stop him? It's the man's own mind to whether stop or continue. I do not understand why you wouldn't consider it a personal reason than making it a wider topic and adding it under religion. Most of the religions do consider gambling as a sin if I am not wrong, but that's not the biggest sin as well. We have people doing way bad things than just gambling in front of a computer screen without harming anyone.