Ask HN: Why doesn't Hacker News improve its UI?

What do you believe needs improving and why?

HN is made for a specific audience, the minimal UI supports the idea of dense information without distraction.

It’s fine. Why fixing something that isn’t broken?

Making that observation is an rite of passage on HN.

The community can make whatever UI it wants, using the API:

https://github.com/HackerNews/API

I wrote one for myself:

https://hn.unlurker.com

Or there are various ways to restyle the main site with a browser script.

How would you suggest to improve it? In my opinion, for its purpose, UI - and UX - of Hacker News are pretty much close to perfect.

The only requirement from me is to add favourite button to the main page.

I'd like to see the gray body text become a little blacker, but that's about it.