I think the deeper insight here is not limited to Cognitect or Clojure: it is that once software gains traction, it is no longer up to the author to determine alpha/beta/stable status. If something is widely depended upon, it will be difficult to change, and it is de facto stable, regardless of the label that the author put on it.
Stop adding yellow to your website. My eyes burn!
Wtf I hit the switch and it literally turns the lights off.