Sometimes I wonder if much of HN couldn't be replaced by automatically seeded and periodic threads about topics that commonly generate discussion. Every month, a bot starts the nuclear discussion. Every three months, it's the home farming discussion.

Along with auto posting every article from the blogs which are popular. There’s a bunch of blogs I follow, some I found here, where every post reliably generates discussion.

Just subscribe and post the RSS feed.

You position it as cultural spaced repetition learning.