Originally Posted by Globetruck
Does anyone know the official answer?
Yes, the officials have the official answer.
I recommend going straight to the horse's mouth, so to speak.
Having said that, when I "thru-hiked" the GSMNP about 5 years ago during a Spring Break, lots of "real" thru-hikers camped around the shelters on the AT of necessity. Some used tents, some used hammocks.
My wife calls my hammock a "bear pinata." YIKES!!!