Twitter is more like a utility, and if it wants to occupy that position it should be more open to content that people disagree with or don't like.
Politics poof gone.
Celebrities poof gone.
Sports poof gone.
Religion poof gone.
HN simply doesn't have to deal with the above in a general manner which removes a massive number of issues.
That is not unique to HN. That is all social media.
People get accounts banned every day here. Moderation on HN is imo heavier than it is on twitter. Topics and discussion are heavily controlled and removed if they become at all sensitive or aggressive. You can't call people names or make crass offtopic jokes (like people on twitter do constantly).
Moderation is quick and personal, but that doesn't scale to a site with the volume of twitter.
I'm not sure how they could pull it off, but if Twitter wants to be a real town hall for the world then these are the things that DO need to be removed.
But if twitter wants to be the place were anyone can scream into the void, then they can't do this.
The weird thing is, I want both. My favorite part of twitter is both of these things.
I don't think you can be a town hall for the world. There are too many differences between societies, communities, and factions across such a large number of people. Sufficient context is difficult to impossible to establish if you have to include both your neighbor and someone from Austria in your audience. Doing so in 280 characters is impossible. So every conversation devolves to the lowest coming denominator - whether that's nastiness or having to write a tons of disclaimers before saying something for fear of older tweets coming back to bite you.
The reason HN or smaller fora work is because they can maintain their own community with certain expectations and established context while aggressively banning anyone who doesn't fall in line. How do you do that on a site as large as Twitter with any sort of consistency, especially across language boundaries?
The moderation and thoughtful approach to community is undoubtedly the best I have seen on the Internet.
It's not for everyone, but it is for me, which is why I refresh the page more times than any other page during the course of the day.
I can't imagine another community that isn't specialist getting close to be honest.
But I would love it if the rest of the Internet were as intellectually curious - this is the core of HN.
Other than that, I learn a lot every day from y'alls!
(dang does do a great job, and it's really remarkable how well HN has maintained its quality over many years. That it is not a commericial enterprise also helps a lot, I think.)
dang, if you're reading this, what's your motivation? It seems like a lot of work and somewhat thankless.
The most controversial topic here is emacs vs vi.
In my experience there's no place like HN on the internet, and that's due I suspect to having a highly professional moderator (@dang) who uses top level communication skills to firmly but politely pull people into line.
That in turn creates a virtuous circle where users socially moderate each other.
It's hard to describe just how relaxing and pleasant it is browsing HN. It's always jarring to read the comments on e.g some Facebook groups I belong to, which feel like they're authored by a bunch of teenagers that have just found the key to their parents liquor cabinet.
If Twitter was like HN I would spend time there.