I'm personally a fan of the coffeescript. I find it interesting that every time a large, public app, framework or library is written in coffeescript, haters crawl out of the woodwork to complain. @visionmedia , is there a conversation anywhere on the internet dissing coffeescript that you haven't been part of?
Contributions are great, and the lifesblood of any project that attempts to be in whole or in part open source, but if the project is useful and well-made, contributions will come regardless of the language that it is written in.
If the editor is really good people will use it, and people will contribute. Let's leave the devs to decide what to write it in. Then they will be happier and more productive, and we'll be far more likely to get that amazing editor.
And sure, there are people right now saying stuff like:
I saw coffeescript and immediately threw my hands up.
But you know what, if that guy falls in love with the editor because it is awesome, and some bug in it begins to bother him enough, I'd bet 9 times out of 10, he'll dive into the code anyways.
I also have to call