[thirsteh]

While I agree with these arguments, the purpose of Go is to Get Stuff Done (TM), and the main purpose of Haskell is to foster PL research and semi-formal methods. It's not really fair to say Haskell is unpopular because it crammed a bunch of things inthere: It is very popular in the niche it was designed for. Go just has a wider appeal.

And remember not to equate popularity with quality. We're all using JavaScript because that's what you need to do in the browser, not because it's a particularly good language. (Not that Go doesn't deserve the adoption it's gotten. It's great to see people ditching clunky Python/Ruby/C++/JavaScript stuff for Go.)