That only happens if the fact nodes are peering provides information relevant to security. If the peer selection protocol is something like a dht, or a random-

That only happens if the fact nodes are peering provides information relevant to security. If the peer selection protocol is something like a dht, or a random-k network like bitcoin, it doesn't leak anything. but in practice nothing works better than all-to-all messages via epidemic routing. https://www.miasma.space/anon-dhts/ https://www.miasma.space/anon-dhts/