I've spent decades exploring online communities (haven't we all?). From forums to 4chan, from Digg to reddit to hacker news. I would say that hacker news has one of the highest quality, most engaged and passionate user bases around... a rare feat. To replicate a place like this for other interests would be a dream.

I think the recipe for a good, interests based community is limited moderation, small scale, and a non-profit orientation. Because even once great communities on reddit have been poisoned by their massive growth and ad driven leadership combined with heavy handed, political moderation.

Oddly enough, I have found /lit/ on 4chan to be one of the best communities for discussing books and writing. They are more grounded and passionate than most of the other Chans and while you'll still find the occasional edgy post or nonsense, the censorship free and open community has some brilliant minds engaging there.

Discord has potential, but the constant flow of information and the reliance on typically heavy handed moderation make it just a faster version of popular writing subreddits.

I wish someone could make a cheap and easy shell to quickly make "hacker news" like clones that people could run for given interests, to create communities like this one geared towards other interests.