My first love was AsciiDoc and it still is. I never got into markdown as much as AsciiDoc because it did what I wanted which was to generate documentation for software. However, when keeping track of stuff I am working on, snippets of possible code and completion status, etc. then Org-Mode has my attention. I have tried doing the same in markdown but most themes don't handle TODO as gracefully as ones targeting org-mode.

I agree. My experience with asciidoc is that it's much more comprehensive and straightforward than trying to manage all the competing markdown implementations while still maintaining legible syntax and a full feature set

agreed and much more compatible with pandoc and https://asciidoctor.org/

bunch of bindings - https://github.com/asciidoc , etc.

Also Oreilly publishing officially supports Asciidoc for Atlas publishing - http://docs.atlas.oreilly.com/writing_in_asciidoc.html

Are you saying Org does not have code blocks?