I know its an old topic but I wanted to chime in. I like smoke when there are no bots around. Bots can see right through it and it becomes an advantage for them. I also avoid smoke if I notice the other team is heavily tac'd. Otherwise, I don't carry smoke, but will use it strategically when I pick it up. Usually, if I pick it up and there are bots or the other team has tacs, I will simply drop them without releasing the smoke, and I usually drop them somewhere that I dont think someones gonna come along and pick them right up.