Do you really believe that a few step by step tip is gonna stop an addictive gambler to quite? I've seen cases where gamblers went as far as going to see therapists to help them resolve their gambling addictions all to no avail. I'm not saying this isn't a good step, it is, all I'm saying is that the poster sounds so pessimistic about using this program to make addictive gamblers to quite. I'm just saying that contrary to the actual intent of this project, the result might be completely different.
Something is better than nothing which is why what op is trying to do will not help many, but will definitely help a few and that by itself is a great accomplishment if you think about it.
Also, I disagree with your opinion about op sounding pessimistic. He is just being realistic while you are the one who actually sounds pessimistic.