In short, because I think it’s making me a better programmer.
I’m still not completely sold on using CoffeeScript for all my personal projects, but after spending a couple days building a small backbone app with it I’ve definitely discovered a few reasons to keep it in the toolbox:
So that's my list. If you’ve been resisting giving CoffeeScript a shot I’d definitely recommend putting your reservations aside and investing a couple hours in it. At the very least, visit coffeescript.org, skim the overview, hit the TRY COFFEESCRIPT button in the nav bar and just experiment a bit. I think you'll get something out of it.