I clicked because I thought it would talk about the actual Dark Web[0] but instead I saw a discussion about how many people use a CSS abstraction layer called Sass

[0] https://en.wikipedia.org/wiki/Dark_web

"Lots and lots of web developers still use 'bad' 'old' languages and technology."

Its about web development; it has nothing to do with darknets (except for the analogy in the title I guess?). I didn't know what SASS was so I looked it up:

"Sass is the most mature, stable, and powerful professional grade CSS extension language in the world." [1]

[1] https://sass-lang.com/

You're absolutely right, but I'm glad I clicked anyway, even if it wasn't what I expected.