With signed strings tied to the keys associated with the handshake name, every action taken on a Web 2 website can now benefit from being verifiable [1]. You don't need the blockchain outside of the identity.
Secondly, the more I've been working with this technology, the more I've truly begun to understand how important it is to own one's name. There shouldn't be two afro88s. Imagine if there is an afro88 on reddit and this person starts acting a certain way -- and then someone comes here and they see your username and apply bias due to actions that were not your own?
Web 666 is a silly name for blending the "stacks" if you can call them that, together, but then again... [2]
[1] A reddit admin edited a user's comments. Imagine if that user was suddenly prosecuted on said "evidence?" What a shame, and cryptographic signatures really empower people on the internet, especially in a Web 2 world.