- Better formatting for text: (1) bullet points (2) markdown-like links (3) Slightly different background for code.

- More "sub-reddits". We already have Ask/Show HN. We probably can add a couple more to keep everything organized.

- Option to auto-collapse comments threads deeper than X levels by default. When they are all open by default like today, only the top comment and its children get more of the eyeballs.