But you are right that I want reliable and easy-to-use services. And centralisation is often one way to go there.

As an interesting counterpoint: Git itself is decentralised and replaced centralised services like Subversion. And that made git easier to use, especially easier to get started with: no need for a server, no need to be online, just do `git init` in any old directory.

A GitHub-clone could be more decentralised, but they'd need to use that decentralisation to drive those other features that people actually care about day to day.