It's funny how someone always posts about these incidents on HN, considering this is a rather mundane event.
Scrolling through their uptime history, it looks like this was the biggest incident in 3 years, perhaps longer,
https://www.redditstatus.com/uptime?page=14
https://www.redditstatus.com/uptime?page=16
I looked through the whole thing back to 2011/09 and there was never more than a "6 component partial outage". Only a few "1 component major outage":
https://www.redditstatus.com/uptime?page=26
The one just now was a "7 component major outage". Annoyingly, these links are going to be inaccurate in the future since they're paged from the present date.