The amount of knowledge required just to have a clean design o the simplest of things, i.e. a few functions that add and delete users is very big; almost all of

The amount of knowledge required just to have a clean design o the simplest of things, i.e. a few functions that add and delete users is very big; almost all of Haskell's important parts need to be known. Is that good? for me, it's an obstacle. I can't expect all the developers that come and go to have a perfect understanding of monads in order to use/debug/extend such code. And what did Haskell actually buys us here? my apologies for being skeptical, but it doesn't seem to buy us anything...in other languages, such things as creating a user, deleting a user, logging actions requires a lot less boilerplate and complexity.