Describe the bug
Replacing the main identifier in a P2P swarm from an IP address or a DHT address to a blockchain address doesn't solve the core problems of anonymous P2P networking, namely, anonymity. It's merely another form of pseudonymity.

This might actually be much worse for privacy than simply an IP address; Lawsuits have been attempted using an IP address as sole evidence and failed. They aren't sufficient evidence on their own. The same precedent doesn't exist with blockchain addresses.

More importantly, the mere usage of a VPN or other proxying methods are sufficient at providing a decent-enough level of anonymity for most P2P users. And the usage of a VPN most likely provides better privacy too, unfortunately...