Relying on third party services for something as critical and personal as email, photos or videos is dangerous.
Companies can be hacked, bankruptcies can happen and users are left at the mercy of a few unkwnon power-brokers.
For the artists that make amazing videos, games, music and other copyrighted content, giving up a large percentage of your revenue can be very discouraging. Plus content creators usually become locked-in to those centralized platforms with the overhanging danger of arbitraty rule changes cutting their revenues.
Phantasma brings a decentralized content distribution system running on the blockchain, with strong emphasis on privacy and security.