Ranked in these QuestionsQuestion Ranking
Designed to be easy for a human to enter with a simple text editor, and easy to read in its raw form.
Pro Widely used
Markdown is quickly becoming the writing standard for academics, scientists, writers, and many more. Websites like GitHub and reddit use Markdown to style their comments.
Pro Revision friendly
It is easy to track changes for markdown documents as compared to other formats like doc, html, etc. You only need to place your markdown documents under some version control system.
You can convert HTML to Markdown or Markdown to HTML. You can use tools like pandoc to convert to other formats as well.
Con Bad support for table
It has poor support for table, while table is an important part of article.
Con Lacks a coherent standard
Lacks a coherent standard, just many semi-compatible dialects (MultiMarkdown, etc)