It's not like the ecosystem is non-existent. At all. Only are most libraries really hard to use (IMHO), and they don't compose well (too many complicated types)

It's not like the ecosystem is non-existent. At all. Only are most libraries really hard to use (IMHO), and they don't compose well (too many complicated types), have terrible compile times... The language might be elegant at the core, but it's too far removed from reality (efficiency on real computers is super hard to control from Haskell) and it's far too focused on types (which, while they catch some errors, slow development down, and encourage unnecessary complexity ("easier" and "more type-safe")). After all, it's an academic language.