I'm glad someone archived this. I had a feeling this was going to happen when I saw how new the posts were.
(It's on my to-do list to automatically mirror all HN submissions as well)
All it takes is a robot.txt file with the right entries in it.
We need something like archive.org, but which reflects the wishes of historians and preservationists, not paranoid website owners.
I recently emailed that suggestion to dang as well - both Web Archive and Archive Today (aka archive.is/ws/ph/wh/whatever), as the former is more likely to stick around and the latter is better than 12ft at bypassing paywalls. It's on their to-do list as well.
I'll add this to our hn.curiosity.ai server asap, should be pretty easy to automate as we already have post sync implemented there