You are being excessively pedantic
I am not excessively pedantic, maybe you are just confused. (This is what you get, if you cant stop attacking personally.)
I was responding to was whether multiline comments are an anti-pattern, not whether HTML+CSS is a programming language.
Yes, and you brought up HTML and CSS as an example, which I invalidated the example with the given reasons. You was the one bringing up markup languages to programming languages discussion. And I pointed out this is a programming forum, the topic is about programming and the statement can be assumed to be programming related, not generalized across all type of languages (like markup, as you brought it up).