I've been using AsciiDoc since Oxide did a podcast on their RFDs and I love it. I find it so much saner than Markdown, and it covers more usecases. I wish there were more implementations but asciidoctor works great. Hugo also supports AsciiDoc.
That's awesome to hear! For other folks, our discussion is at [0] -- in which I learn that AsciiDoc is nowhere near as ubiquitous as I thought it to be. (But optimistic that that's starting to change, especially given the article!)