[api]

A major factor is the unbelievable pain of doing one's own IT work.

Even hosting a blog with Wordpress or Ghost can be a pain, let alone hosting your own git infrastructure. Then you have the whole sign-on / password / account management nightmare. Nobody wants to (sigh, grumble) create yet another (grumble, grumble) account on yet another site.

If there were some kind of open SSO standard that actually worked and was actually low-friction for users, that would go a long way.

That being said I don't have a problem with it. We (ZeroTier) are kind of a decentralization effort, and we use GitHub and Slack because they work and they save time. Use the present to build the future.