Sorry to burst your bubble, but I wonder if your experience is clouded by the (past) inadequacy of your skill set and learning level. We use Haskell in producti

Sorry to burst your bubble, but I wonder if your experience is clouded by the (past) inadequacy of your skill set and learning level. We use Haskell in production across a number of domains and it has produced solid results. So do a number of other very serious companies out there (as an example, most banks have varying degrees of Haskell in production for critical systems). Also, how are parsers or in-memory data structures NOT real-world tasks? You never had to parse some bit-stream or stage a sophisticated-enough computation pipeline that required lots of different, intermediate data types? I'm not sure why you're seemingly dying to make negative blanket statements based on how "it was a pain in the arse" for YOU.