I am not saying that you should not pay attention to scent. In fact, very much the contrary. Playing the wind is your
best and probably only real defense against a cagey bucks nose in the first place. I too keep clean, but do nothing other than that. No point. A deer,
if the conditions are right, (wind blowing slow enough or down drafting right to them) will sense something wrong or out of place, like you, and get nervous or just plain leave. On the other hand, ground contours, wind speeds, etc.. can creat eddies, mini up drafts, dead spots, etc... that even with a deer coming in down wind of you still does not mean he has intercepted your scent stream, thus alerting him to your presence. You can get away with it with or without the carbon based clothes, spraying down, etc... I have seen it happen. To me it does not matter one way or the other. However, if it boosts
your confidence and makes you a better hunter then it is a good thing. I personally don't think it matters. My biggest point is there is a lot of hocus pocus out there claiming to eliminate scent and make you "invisible" to the deers nose. That is just not possible. The only way to do that put on a sealed plastic hazmat suit and breath oxygen from a bottled source. Kinda hard to draw a bow with that on.
I still see and get plenty shot opportunities on some nice bucks. When I have done my part scouting, stand placment and practicing with my weapon of choice, which is primarily my bow, I have put some nice racks on the wall from years past. I meat hunt as well for several does a year. I also would say an old doe is just as much a formidable scent hound as a buck. Worse they tend to alert every deer in the county if they catch wind of you.