[pct-l] Thru-Hike, Explorer Style

[eric at ericwichman.com]

Has anyone ever done the whole trail "Pioneer" or "Explorer" style? In  
other words, no resupply points, no postal service, no shipping food,  
basically completely off the grid, living off the land the whole way.  
What I'm talking about is a cross country survival trip.

My question is. Has anyone ever attempted a thru-hike completely off  
grid, if not why not, if so, WHO, and were they successful?

~Eric