"For the love of god, stop the retardedness with the J"
I wouldn't go that far, but yes you have a point. Clojure library names (not the libraries themselves) try for a "cutesy" vibe (Enclojure, Compojure . blah) so yes it grates a teeny bit, but in the end what is important is not the names but the code.
(Spoken as someone who has no intention of using Clojure on any sustained basis)