I just read that Reddit broke down a few days ago (I don't use that, therefore didn't notice). And the reason why they went offline is just too good to be true, they updated Kubernetes:
The nodeSelector and peerSelector for the route reflectors target the label `node-role.kubernetes.io/master`. In the 1.20 series, Kubernetes changed its terminology from “master” to “control-plane.” And in 1.24, they removed references to “master,” even from running clusters. This is the cause of our outage. Kubernetes node labels.

That is just gorgeous, the woke retarded idiots changed the name of a function call because of "master thatz beez evil racissss".

Source (reddit itself):
https://www.reddit.com/r/RedditEng/c..._piday_outage/