HN would be much better if it allowed the creation of "subReddits" as Reddit does. Currently, you cannot browse HN by topic (or subReddit) as you can Reddit or Slashdot or Voat.
I'm sure that's intentional, to prevent the creation of bubble filters in the community. HN is already going to select for a very narrow range of people, so it does no good to further exclude parts of the community from potentially interesting content.
As long as the main user base doesn't grow too large, then there should be enough on the Front page each day for everyone to find something of interest and be able to participate in comments.