I have the same problem with LightTable... ClojureScript is Lisp and all, but why not Javascript? Huge user base, must be faster since its CS target, and pretty good as a extension language (or just use Lua :))

I'll re-phrase an earlier comment: JS is the x86 of the web, so why argue about which macro syntax is superior?

Because it's a modern and usable version of one of the most ubiquitous language of the modern web era (and happens to actually produces that language as an output, making it seamless to integrate)?

Coffee-script is just synthetic sugar with some build in constructors for syntax elitist like rubyist or pythonistas, it not any different than using plain js. It does not save you for the quirks of js or give you any "improvement" beyond the syntax. Is a nice language, but don't put i like is something more of what it is.

GitHub's guide for javaScript is to write every new JavaScript in CoffeeScript. https://github.com/styleguide/javascript It has been like that for years.