I mean, I read HN, and I deep dive the comments, but my special ability to fully recollect conversations even online ones went away with age. If I could recover this skill I'd be insanely productive. This is alas why we bikeshed so many different tools to track software development (not a jab at the usefulness, just a jab at how some people over complicate simple tools which causes more work than its worth).
I can't do it on HN. Other forums I use have sigs and avatars etc and I get quickly "get to know" the regular posters. I don't "know" a single poster on HN apart from dang.