I'm not an IPFS expert, but my guess is they have the great firewall, so they can MITM every connection and inspect all of the packets for this type of content and do whatever to the originator/packets.
Does the great firewall just happen between outside and inside (Chinese) connections? With IPFS, you could have a direct connection to peers and you could have a direct link (same WiFi for example) where nothing leaves your network when downloading.
As long as one peer in the network has a outside connection, all peers could access that content via relay for example.
Sure, but they can easily pressure ISPs, Spain can do that too. The problem is spain has no leverage against outside computers. China has this via great firewall.
