If only a quote like that could be taken to heart and applied to ones own life, I'm pretty sure that would be life changing. If everyone did it, it would be world changing.
I believe I've got a better-than-chance feel for when a HN submission might hit the front page ("public") or will go/stay down in the long tail (giving opportunity for kicking off the shoes in "private" convos) but admit that when I mess it up it's usually spectacularly wrong.