1, 2 & 4: You could _probably_ write all of CoffeeKup in a couple of days. The concept isn't complicated enough to have so many bugs.
3: CoffeeScript- After using it as my primary programming language for more than a year, I have come across exactly ZERO compiler bugs. It is pretty popular on GitHub, and there are enough eyes looking at it to be called a safe, mainstream language.
3: CoffeeScript- After using it as my primary programming language for more than a year, I have come across exactly ZERO compiler bugs. It is pretty popular on GitHub, and there are enough eyes looking at it to be called a safe, mainstream language.