[bojo]

My team still has 8 year old Haskell systems in production. We pivoted away from the language a few years ago, which I discuss here a bit: https://news.ycombinator.com/item?id=37746386

I personally love ML languages and would be happy to keep developing in them, but the ecosystem support can be a bit of a hassle if you aren't willing to invest in writing and maintaining libraries yourself.