In all the discussions about ES6 one thing is bugging me. I'm picking one random comment here from this io.js issue but it's something that comes up over and over again:
There's sentiment from one group that Node should have full support for Promises. While at the same time another group wants generator syntax support (e.g.
var f = yield fs.stat(...)).
People keep putting generators, callbacks, co, thunks, control flow libraries, and promises into one bucket. If you read that list and you think "well, they are all kind of doing the same thing", then this is to you.