Comment by woodruffw

I think it's possible to both think GitHub Actions is an incredible piece of technology (and an incredible de facto public resource), while also thinking it has significant architectural and experiential flaws. The latter can be fixed; the former is difficult for competitors to replicate.

(In general, I think a lot of criticisms of GitHub Actions don't consider the fully loaded cost of an alternative -- there are lots of great alternative CI/CD services out there, but very few of them will give you the OS/architecture matrix and resource caps that GitHub Actions gives every single OSS project for free.)