Because publishing a blog takes effort, spinning up an additional public repo takes 2 seconds. Github proves that you only really need 2 things: versioning and

Because publishing a blog takes effort, spinning up an additional public repo takes 2 seconds. Github proves that you only really need 2 things: versioning and displaying on the web. Theming, templates, CMS, whatever. Easy versioning + trivial deploys (git push) are a winning combo.