A trophy is in the eye of the beholder. Everyone from everywhere is going to have a different perception of what a trophy is. I think QDM is a great idea if conditions permit it. If I owned a large hunk of land that only me and a handful of hunters will be able to hunt, and antler restriction wouldn't be a bad idea. A couple of my friends have some land and they do just that. They have taken some nice bucks, and have passed on many.
BUT, I primarily hunt state land here in MA. Granted, there are more & more large bucks being taken out here every season, but it's a rare thing. We scout our butts off and if we see a couple of scrub bucks and does, we are doing something right. Now, if we pass on that little 5 pointer and he continues on away, you are apt to hear a shot, or figure you will never see him again because the next guy certainly won't let him walk!
So, do i believe in QDM? Yes, under certain circumstances. Do I practice it ? No.