John’s usually pretty astute, however this line really stuck out at me:

Fifth: Fuck this “sir” shit. We don’t have titles in the United States.

He seems to forget that the US is not the centre of the world. Furthermore, respecting different cultural norms isn’t a bad thing - unless of course following your President is the cultural norm regardless of what he does. I’m currently working on a Japanese project and I use honorifics in all of my correspondence. It’s a small sign of respect and cultural inclusion.