There are lots of interesting people on HN. Is there a browser extension or script (TamperMonkey?) that lets you create a tag for particular user that is rendered next to their name each time it occurs on the page? I believe Reddit had/has this feature but I haven't used it in a long time so I don't know.
Doesn't have to be fancy, just something that works. Can save data in localStorage.
EDIT: I use Firefox.
https://github.com/lachlanmcdonald/hackernews-user-tags
(not thoroughly tested, so use at your own peril. HN runs in quirks mode and there is some nasty global namespaced JS. If you have any issues, do let me know)