The vibe I get from the tone of the docs isn't really juvenile or self-congratulatory. The humor is mature, references made show that material therein have been considered. It's not memes and emojis and WOW! It's somewhat unprofessional, has a few in-jokes, but I like those signals. If the docs haven't succumbed to design-by-committee lowest-common-denominator then neither has the code. It gives me the feeling that someone took the slow road, thought about a lot of things, came out with something simple, and is likely to work hard to preserve that simplicity.

The docs tell me that re-frame is focused on the craft. That means a lot more to me than sprinting to see how do I do x in y quickly.