I don't know if this is going to help the discussion any, but Angus and I were out for the Yute Hunt last weekend. Sunday morning we got a late start and we were away from the house before I realized I had buried the flashlights in the bottom of the packs. The moon was bright enough that it really didn't make any difference. We only had a few hundred yards to go, and we were in the middle of the property.
I'm not going to say we were exactly pussyfooting our way to the blind, but we weren't making all that much noise. We were busted by two deer on the way. I doubt flashlights would have made any difference. This is an area where I've been busted several times in the past. Deer like to bed there on occasion, and I've walked up to within a few yards of bedded deer with my flashlight on and only bumped them at the last moment.
For all the time I've spent in the woods over the years, I can truthfully say that I have never bumped deer with a flashlight that would have not been bumped otherwise. On the other hand, I can truthfully say that I have never seen a deer carrying a flashlight (rimshot)
. . . but seriously, I read about guys getting shot being mistaken for game . Hunter Orange does nothing in moonlight or pitch dark. If for no other reason than that, I would suggest carrying a flashlight.
The other side of this happened on our way out Saturday night. We were walking out the way we came in. I had my flashlight on. Angus did not. We were almost out when Angus walked right into a barbed wire fence in the dark. It didn't hurt him at all, but scared the snot out of him.