I never claimed that Clojure can't do meaningful refactoring, and in fact I acknowledged that Clojure gives you great tools for using your own brain to do refactoring. Clojure is my favorite dynamic language and I heartily recommend it to anyone looking for something in that space. It's just that the experience of refactoring (or anything like it -- even just making large changes) in Haskell is massively better than the experience of doing it in Clojure.