I have tried it. For decades and I quit decades ago.

 So I will knock it. If you work for me and have a beer at lunch (remember, some folks have a beers because it tastes good, relaxes one a bit and might go with the food) -  I probably will not fire your ass.

 But if you smoke enough dope to get high (and if you smoke just a tiny bit of dope - not enough to get high - what's the point?) and write code - I will fire your ass because nobody writes code high and submits it to a client on my dime. 

Just wanted to say - the former co-owner of my business was (and probably still is) a dedicated pothead. And I don't believe he ever wrote code while high. I repeat - I have tried it and I will knock it. The bottom line is: use it with great dissgression and take personal responsibility for the effects. 

But if you were to suggest that Alcohol Abuse is the greatest drug problem in Alaska, I would agree. It's abuse that is the problem and anything can be abused.