Unless I'm stalking something really shy and I'm wearing a ghillie suit, I smoke. Pipes or cigarettes, doesn't matter. In areas where the wildlife is more or less inured to humans I find smoking isn't a problem. But, if I have to mask my smell and body lines, no smoking. So, smoking in a deer stand shouldn't prevent the pipe.
I'm told by a cousin, an avid deer hunter, that they only seem to be hard to find during hunting season. He said it's like they send out a "Code Red" or something. Off season he said all you need is a car, evening light and a bit of bad luck.