My experience sure doesnt agree with this comment. I started out ageing/hanging deer because that is "what I was told was the best thing to do", however one fall 20 yrs ago or so a very warm spell blew in and I had a couple new deer hanging that due to the warm-up needed to be cut & put in the freezer immediately. One of those deer was a 7 yr old 210" shot in the full rut buck, the other a mature doe of unknown age. I fully expected that old buck to be a lot less desirable to eat than the doe but we soon realized that old boy was just as good as the doe.
Well, we thought that that was just a "one off" but it wasnt. We started butchering and boning, trimming (by "trimming" I mean removing every speck of fat from the meat before it goes into the sausage pot or freezer bag as a roast) our deer immediately that they hit the ground. Now , I want to take a breathing animal into the sausage pot or freezer within 4 hrs of hitting the ground. I realize that wont be possible for a lot of you hunters but for me it is, the last 10 or 12 deer I have harvested have been within 200 yrds of my house.
I say that I thought it a "one off" thing but it hasnt been, I have killed a couple more 200" inchers and other full mature animals and they all turn out the same since i started this butchering style...I dont even try to "pick a good eater" out of a bunch, just anything that is suitable for the tag I have at the time.