I love AsciiDoc and I use it wherever I can. I'd bet the reason for using Markdown has more to do with mindshare than anything else. Plus, Pandoc is a great tool for converting Markdown to anything else.
What I really like about AsciiDoc is that it's right near Markdown in terms of simplicity, but with a bit more beef behind it to handle more complex things like referencing figures. If you don't need them, you can stick with the basic syntax, but the power is there when you want it.
What I really like about AsciiDoc is that it's right near Markdown in terms of simplicity, but with a bit more beef behind it to handle more complex things like referencing figures. If you don't need them, you can stick with the basic syntax, but the power is there when you want it.