Yes gambling addiction can actually be positive in a way, if you are a much gambling positive person and you believe you will merit it even when you are seeing  a lot of losses and you keep believing that one day you will definitely win a lot and Which id the truth, one thing I understand about gambling is that you have to be consistent and make sure you gamble with much understanding and know what you needed to do, gambling is just a game of luck and reality of choice, is not everyone has the same luck like others in gambling.
Another thing gambling can much interesting if you are winning.