Joe & Bob - I see it all the time out there, in mohonk, in the adirondacks, in the white mtns... When I'm in the ADK I take pride when the rangers press me and ask twice if I'm SURE I have a bear barrel in my pack because its so small. I love seeing people's reaction when they see my zpacks tent. They look at my like I'm nuts. Then sometimes it gets better when they experience leakage, condensation, a wet night, etc, and come looking at my tent. Some dude just couldn't for the life of him understand why his "thicker" tent couldn't keep him dry or stay up in the wind as well as my "tiny little crinkly bag shelter." LOL. Its sad that people feel the need to bring that much stuff. They always think "oh its just a little more weight to carry, what's the big deal." It all adds up. But then again, SUL is just such a small number... SO much to sacrifice.
To answer the OP's question, I'd say, because a number is a number... I look at the posts here and there, check out what people are writing... I just often find that many times that last few ounces make the difference between being on a "mission" and being on a backpacking trip, either in terms of comfort, convenience, or enjoyment. Sometimes at the expense of all three.
Just as an example, I wouldn't sacrifice even my sit pad, because the comfort of having that for every lunch break and cooking on the rocks is just so worth an extra few ounces. Ultimately I feel this way about just enough items that I'll be staying in the UL category, edging on lightweight, for the foreseeable future.