> The first time I saw CoffeeScript I immediately realized, oh, fuck yes, this is obviously better, and switched over to it immediately. I was productive with it instantly.

Which is fine for you. But I tried it for a project then ditched it, because it didn't justify the extra tooling required in my development pipeline, and because there are ambiguities and inconsistencies in the syntax and the language, and yes, occasionally it's actually worse than Javascript.

Which is only to say that not everyone fits into a "doesn't know CoffeeScript"/"loves CoffeeScript" dichotomy.