For other similar-ish related tools/writing platforms:

* https://write.as/

* http://txti.es/

* http://telegra.ph/

* https://txt.fyi/

* https://verbatim.link/

* https://www.pastery.net/

* http://ix.io/

* https://commentpara.de/

* https://rwtxt.com/

* https://distbin.com/

I'm surprised nobody has attempted to put the content in the URL yet (to display on a static page with styling using JS [needs a tag filter...] to insert an URL parameter into some node). It would accommodate at least 2KB of text, local caching and fast hosting all in one.

Not blogging specific, but it allows you to encode web content into the URL.