What is any possible motivation for doing that? The only one that comes to mind is "I hate when people link to me from other sites," but that makes no sense. It's not hot-linking to a resource, it's just a page address.

(And apparently a lot of other people want to see that picture, as right now I'm just waiting for imgur to do its thing.)

Ah, sorry, I forgot about that property of jwz.org :/