That must be for major site-wide downtime — anyone who frequently uses Reddit knows that a few times per week you'll see a funny little "You broke Reddit" carto

That must be for major site-wide downtime — anyone who frequently uses Reddit knows that a few times per week you'll see a funny little "You broke Reddit" cartoon instead of the page you were trying to load. The problem usually resolves in a matter of seconds, a minute or two at most, so it's not a big deal, and I don't believe these micro-outages are universal (i.e., I think it only happens to a subset of people viewing certain subreddits / hitting particular servers / etc.). I don't think this necessarily means Reddit has crappy engineering. It could be they've just realized that 99.9999% success at serving pages is not a worthwhile goal. I mean, it's Reddit, it's not air traffic control — nobody's going to be hurt if they have to wait 90 seconds to see random crap on Reddit.