Here is the ending of the second-to-last entry in Unqualified Reservations by Curtis Yarvin (AKA Mencius Moldbug)[0]:

> Anyway. UR will reemerge, of course. But not here, and not soon—and probably not even in this form. I’ll also try to do something non-lame with the archives. Thanks for reading!

If the name alone isn't enough, I feel like this context makes it pretty obvious that he named Urbit after his racist blog.

[0]: https://www.unqualified-reservations.org/2014/08/hiatus/