You're a bigger fool for saying it does nothing but good. I've been smoking weed almost 10 years now & I've seen plenty of people fuck up their lives by smoking weed. It can do a lot of good and a lot of bad depending on whether you are using or abusing it.
Smoke daily, is that abuse?
For most people I would say yes. Not for you of course, you are special.
I have known a lot of addicts in my time and I have come up with the following rule of thumb:
If you cannot remember the last time you went seven consecutive days without drinking the booze, smoking the cigarette, smoking the pot, etc. then you
are an addict.
Conversely, all you have to do to prove you
may not be an addict is go seven consecutive days without it. Thirty days without even better.
But if you cannot go seven days then
you are an addict.