I have agreed with all your points at one time or another but I now think that it's HNs structure that stops it turning into Reddit/social media or another echo

I have agreed with all your points at one time or another but I now think that it's HNs structure that stops it turning into Reddit/social media or another echo chamber. I don't program or develop for a living or hobby any more but the realtively high quality submissions and the super high quality comments and discussions make the the trawl worth while, I regularly find interesting discussion in subjects I have no real interest in that cause me to reflect on my own opinions and thinking, to me that is invaluable and I don't get it anywhere else.