Earlier quoted context omitted.
> It looks like they are down to a single 9 at this point across all services That's not at all how you measure uptime. The per area measures are cool but the top bar measuring across all services is silly. I'm unsure what they are targeting, seems across the board it's mostly 99.5+ with the exception of Copilot. Just doing math, 3 (independent, which I'm aware they aren't fully) 99.5 services brings you down to an o…
It depends whether the outages are overlapped or not. If the outages are not overlapped then that is indeed how you do it since some of your services being unavailable means your service is not fully available.
Copilot seems to be the worst offender, and 99% of people using Github likely couldn't care less.