Plain and simple: No, hell no!
A criminal is a criminal. If they get caught eating a corpse or smoking a joint, it's still a crime. And once a criminal, always a criminal. Besides, all pot smokers I once knew were garbage! They'd get high and start treating me like I'm subhuman, mocking me and getting a rise out of me. So the more of them rot in prison, and the longer, the better.
Arizona once made pot possession a felony, and put people in prison for a year for it. I really miss those days!