How big of an outcry would there be if shelters were either actively demolished or phased out by neglecting them until they rotted? For argument's sake, let's leave out the Smokies.
If all responsible hikers carry some form of shelter - tent, hammock, or bivy - would they really be missed that much?
I can see how shelters fit with McKaye's idealized vision, but with modern, light, and affordable tents why bother maintaining three-walled wooden sleeping platforms. Couldn't that extra manpower be put to more practical use on trail maintenance and/or maintaining the shelter areas as campsites and privies?
I don't claim to have any answer. I'm just interested in the question and opinions.