I mean, right now one can pretty freely go write up a blog using self-hosted wordpress, octopress, pelican, hugo or whatever. But choosing that over Medium can sometimes mean a lot more work to put in. But if we can democratize the ease-of-use and the good bits of Medium/Facebook/Twitter... Maciej's end statement about "using open standards, write text in text, images in images" would have been achieved.
The problem is that corporations now create a significantly more compelling version (in most criteria - UX, UI, etc) of the Free and Open versions out there.