This was monitoring the unauthenticated news page, which is why it didn't catch it. It now monitors authentication as well. It is not official, and was made by a co-founder years ago.
Thanks! I checked that page and wondered why it stayed green. I resorted to checking https://downforeveryoneorjustme.com/hacker-news
Thanks! I checked that page and wondered why it stayed green. I resorted to checking https://downforeveryoneorjustme.com/hacker-news