While Markdown is certainly used widely and is based on Grubers original specification, the practical real-world usage is a lot more complicated that just relying on the original specification.
Reading Atwoods issues with original Markdown[1] (which is significant given his extensive experience in products that rely heavily on Markdown), it is quite clear that Markdown as a format has prospered almost in spite of the original specification.
Reading Atwoods issues with original Markdown[1] (which is significant given his extensive experience in products that rely heavily on Markdown), it is quite clear that Markdown as a format has prospered almost in spite of the original specification.
[1] http://blog.codinghorror.com/the-future-of-markdown/