I think you make some good points. People got quite hung up on thinking of privacy at the IP/TCP layer because of legal disputes with RIAA/MPAA etc circa 2005 o

I think you make some good points. People got quite hung up on thinking of privacy at the IP/TCP layer because of legal disputes with RIAA/MPAA etc circa 2005 over IP addresses. It became lore that IP mobility/NAT/cloaking were the ways to protect yourself. But that's living on the run. With all the overlays these days, IPFS, Tor, wireguard tunnels, the game has moved to endpoints, so decentralising and creating peer diversity rather than network diversity is a win, as you say. But we should not entirely abandon ephemerality of network identity as a defence.