I think that all drugs but tobacco, alcohol and marijuana should be wiped from the earth. Resposible drinkers, smokers and the recreational ADULT pot smokers are ok in my book...
I don't smoke pot. It smells good, but it makes me sleepy. I've read a bit on the benefits it has for cancer patients or people with cataracts So long as you don't burn yourself out, I think it has a relaxing effect on people and that's always a good thing. Booze is worse for you, and god knows smoking totally sucks( yeah I'm still quitting, gotta keep up the propaganda).
Anything outside of that, is just plain BAD.