The problem here is decentralized network relies on peers to self-enforce their decent behavior. End users don't know how to, and their vendors have no skin in

The problem here is decentralized network relies on peers to self-enforce their decent behavior. End users don't know how to, and their vendors have no skin in the game - then we get IoT botnets. ISPs won't bother with egress filtering - then we get massive DoS attacks.