Oh yeah, I'm not gonna lie, I'm totally crashing out in the comments.
To be clear, my point isn't so much that people are aggressive, but rather that they're hostile to the message of the article, which is as far as I can tell objectively a good thing that everyone should desire: more success for markdown, easier to use for more people.
How this is drawing such near-universal criticism (at the time of writing) is utterly dumbfounding to me.