At this point in my career, I'd almost prefer to be a CSS engineer because you can accomplish so much with CSS if you know what you're doing, but it gets no respect because it's not a "real programming language" so instead I get paid to write Javascript.

Things that shouldn't exist today:

• CSS-preprocessors — just don't. Use css-variables, good naming conventions and maybe a smidgeon of javascript in the client and you're done.
• Styletron etc. — you've turned your CSS-management-nightmare into a code-management-review-testing nightmare that makes debugging impossible, and you still need to understand CSS to make it work but now you won't learn it as you go along.
• CSS-as-javascript — See above. It's like Styletron except you've rolled your own and now no-one can understand what's going on.