I feel that crypto has the answer. Combine Proof of space with distributed media storage and you create an economic incentive to serve people what they want. X% is your unencrypted library, (1-X)% is encrypted community replication secured by Proof of space. Same distribution approach as freenet (now Hyphanet). Downloading requires credits. Uploading new media gains you credits. The higher the quality/demand of your upload, the more credits received (log scale). Add a zero knowledge recommendation service to aid discovery (and punish illegal media) et voila