I thought it was going as light as your own comfort and safety levels dictates for a given type of trip?
For what I call social backpacking trips, there is usually more hanging out in camp. It would be a bit anti-social to hang out by myself. And I am sure as hell not going to bring my expensive down bag by the campfire. :)
When I am solo, I don't bring a stove, dive into my bag right away and hike all day. Little time is spent in camp. I pack 8lbs of gear (minus the camera gear. That varies, too!)
Different trips, different goals and, many times, different gear. One trip s light, another trip is UL.
Just as there is no such thing as the 'best' gear..there is sure as hell no such thing as what every trip is all about. :)
HYOH, BINGO, XYX, ABC is easy as 123,HMHDI....etc,etc.etc