I also tend to be more respectful of the un-supported style too but everyone has some support. It might be someone sending packages from home, cell phone to shuttle service into towns, a campground night, a slack-pack (which I don't do btw) - - the question becomes where do you draw the line because it's not so clear. If you have a chase vehicle and a local "crew" then you ARE clearly supported but how much support can you receive and still check the "un-supported" box? - - I really don't know - - maybe it's just a "hike your own hike" thing .....