My eyecrometers measured dozens of people arrive in the rooms, state they avoided jail under prop 36, then stayed clean for more than a couple of years. That was just my observation attending 2-4 meeting weekly in a region with over 1000 weekly meetings. Wasn’t the same for everyone on that program of course. During that time we were starting new meetings to accommodate new people. We aren’t growing at the same rate any more.
I was just looking for what "success" means to you. I don't know much about the proposition, so I don't know what it entails, or why you would define it as "successful".
I don't always have the same metrics of success as everyone else on the internet, and so finding out how people are measuring a successful program off of an internet comment is difficult.