That's definitely moving in the right direction. I don't think owning your posts likes and shares is enough to move the needle though. It's got a lot of problems to iron out, but Twetch should be the place people go to download p2p music or movies etc,. that they can own forever.
Once you have the P2P channels, all sorts of commerce comes available. Bitcoin pubkeys are valid as libp2p Peer IDs, so you can communicate with and pay to the same identifier.
Fields the transaction did not carry are omitted. Open the payload to see the bytes as stored.
12zCJp8pS3QKFQHWhRPKd6HHZQRR7qsWGg Unverifiedkind of, but everything isn't 1:1 protocol... For example @2 had this idea where you pay per mb of p2p data downloaded
That fits within "all sorts of commerce" :)