I think you are giving them way too much leeway. For the service they provide there’s no technical reason it can’t be infinitely scalable. For example their “pull request” page constantly goes down. Serving that kind of workload at high burst load is a fully solved problem.
If they are genuinely compute constrained on CI they should obviously reduce the free offerings rather than take down all their paying customers constantly.
If they are genuinely compute constrained on CI they should obviously reduce the free offerings rather than take down all their paying customers constantly.