While it might sound free for ask.clojure.org maintainers to hand it over to being community managed, it cannot be free in time. It is also under a clojure.org domain name, so they probably do not want to change who maintains it.
Before ask.clojure.org was created, there are several other places where Clojure questions are asked and answered, and/or announcements made, e.g. https://www.reddit.com/r/Clojure
plus StackOverflow, of course. One could just as well ask if those sites could be changed to follow Evan Czaplicki's intentional communication ideas. The answer: Sure, they could, if someone who maintains them is willing to invest the time and effort to do so.