Absolutely nothing there to disagree with, AK!
In fact, after my initial flurry of weighing and recording everything in GearGrams — and I do continue to weigh new items and add them to the GG database — I hardly ever weigh my pack any more because I know what bits of kit I'll need for a particular hike and pack them, knowing that the total will be pretty darn light. Did a hike Sun-Mon-Tue in the Greylock area with 2 other UL-ers and none of us knew our exact pack weights, and didn't need to... we just know they're a helluva lot lighter than they used to be and that the fun factor is a lot higher.
This time of the year my base weight is a bit under 8 lbs, and that's with total comfort. For me. I know... some folks want to carry a chair, camp shoes, jammies, full pillow with cover, plush full-length sleep mat, all manner of electronic gadgets, WG stove with pot, skillet and spatula, big honkin' hunting knife, hatchet, saw, etc etc, none of which fall into the
NEED category. In the end it's true that knowing the exact pack weight is irrelevant, but simply applying the concept of "Want vs Need" will inevitably lighten the load considerably. But when the benefits are realized it is natural to be seduced into craving an even lighter weight kit and perhaps stray into stupid-light territory. I stopped before reaching that point.
I, too, could stand to lose a few pounds in the belly, grrrrr... Working on that and am happy to report my pants are starting to fit much better, lol. Easier to control pack weight creep than body weight creep, alas.