These posts just go to show - each to his or her own! Isn't the main point that as long as you are not harming, or endangering, or spoiling the pleasure of others (or damaging the environment, although that is, of couse, impossible),and you are enjoying your trip out in the hills / wilderness, then do your own thing and do not worry or feel superior if others do it differently.
And most people will be carrying / wearing what others might call the "wrong" kit. We have to compromise, because few can afford the variety you would need in gear for all locations / conditions. And there would also be environmental considerations in buying too much stuff. So we buy stuff and make do. For example, I backpack with a Terra Nova Voyager Light. Heavier than I need on a calm summer's night in the Lakes when a bivvy bag would do; good for typical spring to autumn nights; lousy pitching in heavy rain (pitches inner first!) or for use in a storm or heavy snow when something more bomb proof might do. Similarly, my sleeping bag is a Rab Atlas 500 - I have been freezing in this, and too hot, and, probably mostly, just right - but I aint buying another lighter or heavier one!
David