What has the author exactly achieved compared to, say, pg or Rich Hickey? Here's an answer from Rich Hickey about the type of person such as the author of TFA:

What has the author exactly achieved compared to, say, pg or Rich Hickey? Here's an answer from Rich Hickey about the type of person such as the author of TFA: Q: What would you say to people who claim that Clojure is not a “real Lisp”? Hickey: Life is too short to spend time on such people. Plenty of Lisp experts have recognized Clojure as a Lisp. I don’t expect everyone to prefer Clojure over their favorite Lisp. We understand you, author. You love your CL and you think it's the one true Lisp dialect. Good. We have no time to waste with you ; )