What about pirates?
I remember once I read Peter Sunde's post when Kickass torrents been shut down. He was in opinion in future the data must be distributed and uncensored without any Centralized control. Data should be free and accessible to every one.
May be, the pirates of with same opinion may employ this idea. Which means even the host don't know what data was hosted except with the user who had its key.
Because the data hosted on the blockchain will be encrypted with cryptography.
May be this may tap the untapped potential.
It's just my view. Waiting for your review on Storj and other kind of projects.