If it's not your money, there's no reason to get mad. You pay for Internet when that money could go towards cancer treatment. Lots of people make money off their hobbies. Streaming a game if you're a gamer is pretty much the same as playing a concert if you're a musician. People paid for the tickets instead of donating to charity, doesn't make them bad people. Musicians like to get paid for playing. If you invest the time to be successful in your hobby, then why not try to live off it if it's your passion?