[yalph]

But it is not harmful.

[jedberg]

I'm a big supporter of legal weed, but even I know better than that. It's less harmful than alcohol, and about on par with caffeine.

There are definitely effects from long term use. Both science and my personal anecdata of long time smoking friends tell me that.

[jon_richards]

It is harmful, it's just almost certainly less harmful than alcohol.