> Speaking of cultural, the jargon of the language is didactic and annoying. All over the documentation references to monadic or niladic or diadic functions. Also calling things verbs or adverbs or nouns is annoying and unhelpful.

That is a valid opinion, but this is not a k thing. The same jargon is used by APL, J and practically any other array programming language. In fact, the term monad was first used in this context [1].

[1] https://en.wikipedia.org/wiki/Monad_(functional_programming)...