This is a good article, although I wish it had talked a little more about the standardization (or rather, the lack thereof) in Markdown. I get why it didn't, it's trying to be positive about something that is an overwhelming net positive for the world, but I think a "warts-and-all" treatment of the history would be more honest.

I appreciate that Gruber brought this very helpful thing into the world, but OTOH he was such a prick about the whole Standard Markdown debate, for no real reason other than ego. And it resulted in Markdown remaining an ill-defined standard to this day, with occasional compatibility issues still cropping up even though most platforms support most of "Github-flavored Markdown" (itself a stupid name and indicative how badly this has gone).