How do you expect anyone to learn CSS if they're being told to not even think about writing CSS unless they already know CSS? The whole premise demotivates learning. Experts weren't always experts. They had to start somewhere. If the world were to follow your advice, CSS would soon become dead knowledge. I am absolutely perplexed that you could write something, an act of conveying knowledge, and that you wanted to convey "don't learn this". Do you not see how weird that is?