I can confirm that. And on top of the negative effects that you mention, I was also definitely addicted to it. The physical withdrawal was relatively mild, of course (even though it was still quite unpleasant), but it took me a long time and quite a few relapses until I finally managed to quit. And I was never a daytime smoker even.

And I'm not the only one. I've lived with and been friends with quite a few long-term 'potheads'. Some, but not all of them, were also part of this 'weed culture'. I'd say at least half of them wanted to quit, tried to quit, but often didn't manage, for years on end.

Now, I think that's actually pretty decent all in all, considering 'my crowd', and it's nothing like what I've seen alcohol do! But it's still significant enough to be a little bit careful around pot. I'm all for legalization, but let's not pretend there are no risks!