I think what it comes down to is that medical mj works for some people. Obviously, not everyone who tries weed gets "hooked." Some people do it early on in their life, use it as a party drug or something, and then move on to college and binge drinking and coke and then give it all up get a job and have a family and never look back. Very few "casual" marijuana users turn into afficionados, pot forum members, growers, daily joint smokers, and all the things we are.
If you use pot daily, it is probably for a reason. Maybe it makes your back feel better, stops a headache, just gives you an overall pleasant feeling. When you stop you might be worrying about symptoms coming back, and that might cause feelings of anxiety, or restless nights. A few years ago I was working two jobs, one from 3am-8am and another from noon-8pm. When I didn't have pot I was crippled by anxiety, had night sweats, horrific dreams, stomach aches. Call it addiction if you want. When I was a kid I had night terrors. In my early teens, before trying pot, I had depression. Some ill thoughts were from being in a car accident and having half of my face swollen and disfigured for a year after. I found pot when I was in high school and I treated it as a party drug back then. When I left for college and didn't have pot, for some reason I had depression again, burned myself a few times (mutilation), and turned to other things like alcohol and drugs.
Since becoming a medical mj patient, I have been able to settle down, relax, and get my things together. I've tried talking to psychologists, doctors..tried prescriptions like Paxil, Xanax. Nothing else worked.
I'm now a straight "A" college student, homeowner, property manager, horticulturist, and anyone who wants to talk about my "addiction" to weed can fuck off. This shit was put here by God and meant to be used however we want to use it.