RE: who really pratices?
With the exception of spots and little bucks anything that walks by is liable to catch the sharp end of my arrow. IMO if I want meat it is better to shoot a doe rather then a small buck. I don't buy into a buck is better no matter how big it is.
No with the exception of spots and dinks I'll shoot just about anything else. I don't need to devistate the herd but I may shoot between 2-4 deer a year (between the 2 states I hunt). I take does for meat and do my part to let little bucks grow a bit. I may eat buck tag soup but I do so knowing that I'll likely be rewarded later for my sacrafice(if you want to cal it that) today.