That is exactly what I would also like to do. The HN comments are usually as interesting as the the link in the post. For example people point out other resources or the author of the linked post comments with more details.

I still have no clear solution to this, I currently use org mode but 1) it does not work well on mobile and 2) even on the desktop I should find the time to automate it more (with automatic archiving, better templates captures, etc). While 2) can be solved, 1) is still a problem.