I've noticed that people who are using it compulsively, or using it heavily for "recreation" are under the impression that it makes people creative, intelligent, sane, etc. I've also noticed that it really, really doesn't. It just makes them think they are, and they appear to be to to others who use regularly. Maybe the impairments sync up.
About 6 - 12 weeks of voluntary (or semi-voluntary) sobriety seems to be enough to rid people of such delusions.
Of course, it's not the worst thing in the world, but I get sick of the "weed is good for you" rhetoric. Like with any other mood-altering drug (prescribed or otherwise), users run the risk of
a) Physical damage (chronic respiratory illness, weight gain, inflammation, hypo and hyper tension)
b) Psychological affects (exacerbation or development of mental illness, panic attacks, general apathy, and loss of mental clarity), and
c) Dependency behaviors (needing more to get desired effects, feelings of stress or anger when the substance is unavailable, taking it in larger amounts or over a longer period of time than was intended, unsuccessful attempts to cut down or control use, important activities given up/reduced due to substance use, mental preoccupation with substance use, and continued use despite knowledge of problems caused or exacerbated by use).
I was gonna go to court, but then I got high.