I publish it on my own, and syndicate it through RSS.
This puts me in a publishing ecosystem that is wide open and full of interop.
Blogging is an ecosystem because it’s open, as are ecosystems in nature. It’s not sitting on somebody’s platform or contained in somebody’s silo.
Blogging is just publishing, plus whatever grows naturally around that. It’s a how, not a where, which makes it a much better what.