[godDLL]

Any plain-text based format is, in the end, maximally at least as readable as plain-text. Any kind of markup in it will generally diminish readability. Markdown is very close to being just plain text, but with a very short path to HTML markup -- you just start typing HTML in.

So yes, people will enjoy reading Markdown in at least as much as they do plain text. And yes, the implementation quirks will be annoying for anyone using it. But I don't see how all these add up to a larger argument against Markdown.