The problem isn't knowing or not knowing Clojure. The worst codebases (and that is true of other languages just as for Clojure) that I have seen are ones done

The problem isn't knowing or not knowing Clojure. The worst codebases (and that is true of other languages just as for Clojure) that I have seen are ones done by people who are intelligent enough to learn every feature of their language and any little trick available on the internet but haven't yet had the chance to acquire the wisdom on when to use them or what to use them for.