Hyper Text Markup Language

A. Yes it's a language.

B. People who write HTML have been called Programmers for decades.

C. Are you writing in a kind of pseudo code that the computer is going to transform into another form? Yes.

I think the problem here isn't that HTML isn't a programming language. The problem is that we don't further classify programming languages.

There should be Platform Languages and Client languages.

HTML is most definitely a Client Language.

As much as a lot of us dislike it... I think it is difficult to argue for e.g. python being a programming language without including html in it.

And honestly if python is no a programming language because you use an interpreter... Then I would love to hear a non-bad-faith argument for c being a programming language as e.g. GCC could easily be viewed as an interpreter too. Obviously there is a difference but is that difference really the difference that you want it to be?