Did this guy just paraphrase the RFC? It's a lot of work, but if it gets you on HN...
How many web developers actually know HTML, for example? In a few discussions here and on Reddit, it seemed like well over 80% did not realize that <!doctype html> is a valid doctype, or that you do not need to close many common tags.
If it wasn't for his ignorant boosterism, we probably could have euthanized XHTML a long time ago.