Well, that thread is about bugout bags, not “pre-packed overnight bags,” and specifically (per the OP) one “designed to get you out of an emergency situation and allow you to survive self-contained for up to 3 days.” And even still most people in that thread seem to have some sort of disaster prep covered, and many do indeed have a bag with some supplies.
I mean, I’m not opposed to the idea of bugout bags in theory, but I think people take the idea* way too far* in terms of actual survival gear because they want an excuse to buy cool gadgets. And, what’s this? Someone agrees with me!
Anyway, we’re all talking about “collapse of society” folks and you’re saying that we’re anti-overnight bags. I’m not sure how we resolve this disparity of perception.