No offense is meant, but the bold part of your post starts out like a nutnshmancy video. Can you honestly tell the difference between .5 ounces in your pocket? If you can, you must wear scales for pants.
If 5 ounces in the pocket is out of the question, my response is those people need to start eating more, maybe get to a gym. We are talking the weight of 3 American nickels = 15~grams.
I dislike Nutnfancys videos. Im no fan of his.
However, I tend to agree with him, and countless others, about the over 5 ounce rule. Much beyond that weight, EDC folders get really annoying to me. The knife has to have some other really endearing features to make it worth carrying. My XM-18 is an example of this. BTW, it currently the heaviest folder I own. At 5.6 oz, it barely qualifies.
And yes, some people, myself included, really can tell the difference in our pockets between a 5 oz knife and a 6 oz knife, especially if one wears thin material pants. Tight, heavy blue jean pockets carry folders much differently than loose fit, thin nylon pant pockets.
And yes, lean guys, like myself, seem to notice heavy, bulky folders more than fat guys.