imho that corner already exists , it’s called NIP-17 giftwraps. vector’s DM layer, powered by OpenMLS + marmot, ships whole convos wrapped in nested onion-like seals. traffic looks like random bloom filters over daisy-chained relays.
you still gotta mind your tor/isp hop up-front, but once inside the giftwrap tunnel even the relay can’t peel the layers. great spot to hatch new sats without leaking who’s talking.