[goblin89]

CS offers a lot of nice syntax sugar, indeed. It helps with many common mistakes made in JS code (missing `var`s and use of '==' operator come to mind).

However, it also provides a few new ways to shoot yourself in the foot. Automatic return may be one example. Generally, thanks to terser syntax, the code may become illegible very quickly—especially in an environment with many contributors and little care about coding style.

IMO successful CoffeeScript usage in larger projects requires strict coding guidelines. Maybe the language would even benefit from more ‘centralized’ and opinionated approach, like Python's PEPs.