Thanks, this explanation makes much more sense. However, it's still misses the fact that dopamine involved in our lives very widely, and addictions can be developed to practically anything. "Normal" games are a good example, as well as obsessive buying, or aesthetic procedures, caffeine, sugar. All this things (and many more) can become uncontrollable, and dangerous to the point of death. When people demand something to be prohibited because they got moved by a story of a poor soul destroyed by addiction they must realize logical implications. Like way more people affected by alcohol than by gambling, and yet at this times most people would point you that prohibition didn't work.