Comment by mahkoh

The problem with asciidoc is that it doesn't support nesting. Markdown allows you to nest constructs as much as you want using syntax that are easy to use for both humans and documentation-generating applications.

The asciidoc developers don't seem to consider this an important issue: https://github.com/asciidoctor/asciidoctor/issues/1121

While asciidoc has some nice constructs, this made it a no go the last time I was looking for a documentation language.