Here is my opinion on the effects of cannabis and it's advantages and disadvantages
Reasons I think pot should be partially legalized in Russia:
All studies so far show that smoking cannabis isn't more harmful(while some studies claim its less) to your body than smoking tobacco or drinking alchohol, while drinking it as a tincture makes it harmless.
Due to the improving living standards it is unlikely that Russians will again go on a drug consuming spree like in the 90s even if they were readily available to them. The rather low according to almost all studies addictiveness of marijuana lowers the chance even further.
Even when illegal, pot has become so ubiquitous that it's unlikely that it's consumption will decline.
Adding to the previous point, the Russian government could get an additional stream of profit by legalising but heavily taxing the sell and the cultivation of the plant.
Even if it were to remain illegal, getting years of jail time for the owning of a drug that is much clearly weaker than cocain or heroin is rather unjust.
Legalizing it would improve russia's standing in the view of foreign liberals(not that this is very much desired currently)
Reasons against legalizing it:
Given Russia's drug abuse problems, it would be unwise to let an additional addictive substance into the market.
Access to an additional mind altering substance would generally increase DUI and reduce productivity(although this has more to do IMO with the problem of irresponsible consumption rather than the type of substance)
It would make religious people mad.
Russia should be god's rightious earthly realm devoid of the heathen substances used in the decadent liberalgaytravestite antifamily satanomarxist jewish colonies.
It's too early to make a decision to legalize it due to the lack of serious unbiased research on the effects of cannabis so far.
Cannabis could be a gateway drug for many people.