Plenty of people use cannabis to alleviate symptoms. I don't think they expect to be cured entirely. Getting a good night's sleep or being without chronic pain for a few hours is often enough.
> There were insufficient data to meta-analyse studies of ADHD, bipolar disorder, obsessive-compulsive disorder, and tobacco use disorder. There was an absence of RCT evidence for the treatment of depression. Meta-analysis revealed higher odds of all-cause adverse events (OR 1·75, 95% CI 1·25 to 2·46) among those using cannabis versus control group
The paper says there's no evidence of effectiveness in treatment, and evidence of harm.
1: https://www.thelancet.com/journals/lanpsy/article/PIIS2215-0...
The paper says "insufficient data" for helpfulness for most positive categories (but leans more positive than negative just doesn't reach 95% confidence), but also insufficient data on most negative categories. It finds 5 conditions it's helpful for, and 3 it hurts for.
> There was an absence of RCT evidence for the treatment of depression.
> Meta-analysis revealed higher odds of all-cause adverse events (OR 1·75, 95% CI 1·25 to 2·46) among those using cannabis versus control group
And my point was that the paper talks about absence of data about efficacy on treatment so arguing on helping vs. curing in interpreting it is moot.
No you aren't
You said "The paper says there's no evidence of effectiveness in treatment, and evidence of harm." which is a completely inaccurate summary.
> There were no significant effects on outcomes associated with anxiety, anorexia nervosa, psychotic disorders, post-traumatic stress disorder, and opioid use disorder. There were insufficient data to meta-analyse studies of ADHD, bipolar disorder, obsessive-compulsive disorder, and tobacco use disorder. There was an absence of RCT evidence for the treatment of depression.
The strongest claim is the lack of significant effects for anxiety, ptsd etc. but it varies a bit whether that's because the effect is too small or because it is not studied enough.
For anxiety for instance the effect they list in the paper is quite big but the error bars are even bigger so the net result is inconclusive. This is quite different from PTSD where they note little to no effect with small error bars.
Is this paper trying to confuse people about psilocybin?
Exactly.
People looking for long term solutions to those issues need to address the root cause(s), which often requires therapy, lifestyle alterations, and work on the self. Change doesn't happen overnight, and it might even take a few tries to find the right therapist.
Obviously can't speak for everyone, but I know people who do think literally that. They think that weed will actually cure their depression, and they'll allude to some studies about it that I'm pretty sure don't exist and that they just made up.