I used to have a blog on some of these and currently they seem to pop up again.
Looking at my feeds it seems that Dropbox-based publishing platforms are getting traction again, which is great. Probably it’s Gabe’s fault :-).
Either way, I used to run this blog on Scriptogr.am and on some other platform which is probably not existing anymore. It was fun, but in the end I always went back to Wordpress. It has more features (galleries come to mind) that I am looking for, even though Markdown based publishing feels more natural and is inherently simpler it just serves a different purpose.