> Now... I'm absolutely convinced that marijuana use can have absolutely catastrophic mental health implications for some people. I'm also convinced it can help people with certain conditions.

Absolutely. I am cutting down on weed after seeing it wreck a friend. They were really bright and down to Earth, but they use weed to deal with anxiety and now need to smoke before hanging out with friends. Now they are fully dependent on weed.

It has turned them into an unbearable person with no motivation. My friend is now totally unaware of how much of an asshole they are and no one wants to deal with them.

Weed can be an awesome relatively safe drug but please look for the warning signs of dependence and know that r/leaves exists.