It also bugs the fuck out of me that CoffeeScript projects frequently end up being given a *.js extension in the name and how often people who want nothing in the world to do with CoffeeScript, people like me, end up having to deal with it for some reason. Like I don't like ada, and I never have to look at it. ada never ends up in my editor or on a github page I'm looking at, but frequently someone puts CoffeeScript somewhere where someone was expecting JavaScript, like a StackOverflow answer, or a package for Meteor, or something. If CoffeeScript stayed out of my life, and I out of it, I would probably hate it a lot less.
It's not that it's transpiled. I mean that isn't a great thing, but for example I like the idea of Dart and even TypeScript. But CoffeeScript? No thanks.