No, I'm not asking for bugs. I'm asking for a basic feature of natural languages: to define a context where I work, where short, concise words have a precise me

No, I'm not asking for bugs. I'm asking for a basic feature of natural languages: to define a context where I work, where short, concise words have a precise meaning. This is an elementary thing - its the basis behind namespaces, the drive behind object oriented programming. Its a fundamental design mistake to put limits on this. But its worse, because its also a silent mistake. Shadowing could be forbidden but variable declaration and assignment could still be different things, and then the compiler could warn you when you try to re-use a name. But no, coffee script will give you random bugs instead. JavaScript has its rough edges. CofeeScript simply has a rot right in its core.