Why not? It comments on the presentation of the content. Can't we judge here on HN the font, CSS layout, animations, javascript, popups? Can we only rate raw content, text, presented on a page? Where do you draw the line? It it okay by you to comment on images?

So what, it’s true.

This link is more spam and ad than content.

Lord knows how it got to the top of HN today.

(Hint: clearly pros at scams and phishing)