All three play off of people who differ from the "norm," and, quite frankly, the heart of Night Court was boorish humor ("rough and bad mannered") playing off of a weird and interesting collection of people and cases. Huge, huge fan of Night Court. I regularly rewatch every season. Part of the massive appeal of Night Court is the broad humor, and Dan Fielding was the biggest reason for that to the point where John Larroquette had to ask the academy to stop allowing his nomination after winning Emmy awards in 1985, 1986, 1987, and 1988. Plus, as someone who is trans, I've no problem saying that some of the jokes Dan made to his trans friend were in exceptionally bad taste (it comes from the third video on the list which doesn't have that scene). Yeah, we don't sympathize with Dan now, but in the 1980s you can bet people did. "Bad taste" is often relative.