1. I can keep track changes with git 2. I can host them on Github pages for FREE 3. I own the content 4. More flexible
In fact I've been really annoyed with all the boilerplate code and extensions I need to deal with in order to have a "usable" workflow set up, I almost thought about moving back to free blog services like medium, tumblr, wordpress, etc. but the only reasons I can't are the ones I mentioned above.