I smoke and depending on the wind,thermal reversals etc. You can get away with it. The BIG problem is hand mnovement when smoking, deer will catch it.
I experemted one fall many years ago in a hot spot near home on the edge of a clover field(tons of deer) with many different things that were said to be taboo in deer hunting. Once I smoked a cigar and blew smoke toward deer 10 yds away and they didin't pay attention. Once they saw my hand move from my mouth and back they took off. This was all out of a ground blind, no one used tree stands much then. I also made a mack scrape in fron of the blind and urinated in it and it didn't scare deer in fact many came to investigate ! I also saw a deer walking around with a turkey feather in it's mouth, when drooped another deer would pick it up and many times I saw deer walking toward me with the wind at their back blowing so hard the hair stood up. I always thought they traveled with the wind in their face.