Love this article on Coffee Script

Nicolas Bevacqua is a very passionate individual. He blogs about the obfuscation created by Coffee Script in things like answering questions on forums or posting examples

It’s quite a funny read and I personally agree with him. I’m not saying CoffeeScript is bad, i think it looks nice but the point being made is CoffeeScript !== JavaScript and you can’t expect people to understand your code if they have only ever known JavaScript.