[seiji]

Why is the master on GitHub anyway?

If a company can't maintain their own internal tools and self-hosting servers, why does the same company think it can run reliable services for users?

Not putting the core of your business on a remote platform is disaster mitigation 101.

[kbenson]

Why use AWS, GCE or any other virtualization provider? I suspect for some subset of companies the answer is the same.

Relying on Github is not the problem, relying on Github to be available 24/7 is. Github provides a free master node for your eventually consistent database needs, where the database is git. The eventual portion is key here.