Capitalizing your Numbers
This guy is either working for the government and attempting to cover up what you might learn from Area 51 or he just completely missed the joke. Either way, he must have known where this author was heading with it.
It’s not even a significant debate when you get down to it. You can technically capitalize numbers, as they say. Five, Two, Nine, and so on are all examples of legitimate numbers. Please don’t go there; the last thing the English language needs is more complicated spelling and grammar rules.