I smoke every morning before shower and ever evening before bed. I've done so for many years now and it's helped reduce my depression (inherited) and keep my GAD under control. It's been much more successful than traditional treatment regimes (SSRIs et al - tried it all) I'm currently running a successful business and have never been in any trouble with the law. Without marijuana I'd never have been able to achieve what I did.
Yeah, there are lots of anecdotal stories that at the least suggest that the effects of marijuana seem to vary from user to user.
I knew one guy that had habitually smoked a bowl pretty much every single day ever since the 70s. He was a brilliant programmer, had a much better short-term and long-term memory than I do, and was well-versed in numerous other topics.
I also knew another person that was mostly average, and then started smoking marijuana, and lost all drive to do anything or the ability to recall conversations from the previous day.
And I knew yet another person that wanted to get something done in life, so he quit smoking marijuana and felt a lot better, much sharper, started studying again, etc.
It depends. The important part is that you spend enough time in introspection to understand what's good for you and what isn't.
There's nothing intrinsically good or bad about marijuana.
(Posting under a throwaway account)