I don't know about you guys but when I returned to hiking after a fairly long hiatus, I did a small amount of research. It was perfectly logical and immediately apparent to me that I could carry a much smaller load than I was thinking I needed. My first time back on the trail, I was carrying maybe 1/3 of what I did back in my days as a teen. This was after only moderate and casual research. I've since paried down to borderline SUL gear weights, which is the only part of this process that required real digging. I think lightweight backpacking is like most things in life that require a bit of thought: most people aren't willing to do any research on their own. They rely totally on the local outfitter…who are often people knowledgeable in outdoor pursuits other than backpacking or, even worse, just interested in the outdoors with no real experience at all.
On my Memorial Day hike, I too saw nothing but monster pack after monster pack coming down the AT. I can't imagine carrying even close that kind of weight anymore. We sheltered with a young man who told me he was section hiking Harper's Ferry to Maine. His loaded 5000 c.i. Kelty Red Cloud pack (listed at 5lb, 13oz) had to weigh 50 lbs. Granted, he had a 6 day food load but that's still twice the weight of my pack and my wife's pack added together! He was carrying everything under the sun. The funny thing was, he was using an alcohol stove which, at this point, is like slapping a band-aid on a machete wound!
The alky stove tells me he's done at least casual research so how did he miss the point? He told us staright out that he was "totally whipped" at the end of a 14 mile hike so I'm sure he wasn't too attached to everything he was carrying. If he was an isolated individual I guess I could understand but as others have pointed out, this guy is indicative of a vast majority of people on the trail.