Okay, just for kicks and grins, let me ask you this: then what's the purpose? To a certain extent, you will be avoiding much of what makes the AT special - the people, the towns, the hostels, and the social aspect in general. There are some truly wonderful people along the way. I can't imagine hiking the AT and not staying at Kincora, for example, or Elmer's in Hot Springs, and I will always remember my stay at Miss Janet's in Erwin with Baltimore Jack blasting Johnny Cash in the kitchen.
To me this is like saying that you want to walk the Camino de Santiago but not stay in any of the refugios. Sure, it can be done, but it becomes an entirely different experience.
Please don't take this as a personal affront - I don't mean it that way. I'll probably regret posting this....