As for the dangers and addictiveness of pot vs alcohol and cigarettes, there is a great deal of conflicting research on this.
Pot can cause cancer when smoked, just as cigarettes can, however people don't generally smoke pot as much as they smoke cigarettes.
Browsing through ads on Craigslist (yeah, bad idea I know) it seemed like every 13th girl or so said this. 420 was the California police radio code for a marijuana arrest in progress.
I find the Do You Take Drugs category one of the more amusing things on POF .
I wasn't going to be the one to bring it up, but...
some of the rumors about the number claim it was started by Neo-Nazis to commemorate the "holiday".
Pot can result in brain damage, especially in young people. 'White men' invented alcohol, but pot was mainly consumed by ethnic minorities (mainly Mexicans in the US).
Plentyoffish dating forums are a place to meet singles and get dating advice or share dating experiences etc.
Hopefully you will all have fun meeting singles and try out this online dating thing...
And let's not get started on what could happen if the drug is laced with something, which can be quite common.
This comes from my own personal experience with the drug (mainly how I've seen other people react when high, but also from the few times I smoked pot when I was younger... I personally think that it should be illegal to drive while heavily influences by any substance, which includes alcohol, marijuana, cocaine, hash, heroin, whatever.