This format (written) is also super convenient to return to HN and search for something. As long as there is not transcription (at least for searching purposes), audio is semi-useless (at least for the use that I may have).

I have used the 'Search' in HN multiple times to educate myself on topics, reading the article in 3-4mins and then spending 20mins on comment section to expand and enhance my knowledge and/or critical thinking.

HN can be a useful library.