IPFS is actually a better fit for this than it might appear. It doesn't pro-actively replicate content, so it isn't like bit torrent where everyone is uploadin

IPFS is actually a better fit for this than it might appear. It doesn't pro-actively replicate content, so it isn't like bit torrent where everyone is uploading. Instead, it provides resilience, where the actual location of sci-hub could move around, but requesters could still get access to the content. The rest of the network acts to help with routing, but won't be serving data they haven't accessed themselves.