This is a very good question. I wrote an answer in another thread on this topic which illustrates a use-case you might find interesting: https://news.ycombinator.com/item?id=15512116
Total shot in the dark, but could there be a use case in Software Licensing? Your customer agrees to host a node in your distributed network, and all clients are able to view a digest of licenses in a format that is not solely owned by the publisher?
I'd imagine it's good for developers as well for quick testing.