It’s not directly monetized so the design is meant to serve the user. In contrast social media design principles are about controlling user behavior to maximize revenue. This means HN is fast, simple, and information dense. Those are desirable properties on any device.

With all due respect, this isn’t a restaurant it’s a McDonald’s.

(Except in this case, it would be the other way around)

In long threads, it's easy to loose track of which parent a given comment is replying to. So I'll click `parent`, which gives me the context I need. But then I have no way to get back to the reply I was reading previously.