I've lost count of the number of times when I've unexpectedly wanted to revisit an article from days/weeks/months ago and have utterly failed to find the site by search/browser history (I visit from mulitple machines), etc. I really don't want to have yet another service to sign in to for saving interesting links - and even if I did - they're not always things that I think I wanted to save at the time.
What I'd like to see is:
- opt in to have links pass through a intermediate step so the outbound step is saved in my profile on HN
- include the URL and the HN piece (comments, etc)
Seems very simple to do, and would make it so much easier to refer friends back to what I've read without having to rely on my poor memory or rigorous bookmarking.