you-have-just-experienced-things on Tumblr is both a functional programming nerd and someone who has taken an interest in Urbit. Here's the tag:

http://you-have-just-experienced-things.tumblr.com/tagged/no...

He notes bone-lisp:

https://github.com/wolfgangj/bone-lisp/ http://you-have-just-experienced-things.tumblr.com/post/1455... -

- which he considers basically a lot of what Hoon should have been, i.e. sensible.