I worry a lot about Typical Mind Fallacy - LessWrong [? · GW], not just with this post, but generally when talking about OPR - Other Peoples' Rationality.  I fully agree with your internal-facing point, but for discussions with others, it's very hard to know what presentation style is likely to work.  In fact, it's hard to define what "work" even means in many of these discussions.

Binmen == garbage men. [BTW, I think you're underestimating them.]