It would move us from the current situation where everyone (e.g. nostr:npub18na8n7phl8r3sz67nqh3zhdzslj24qc5ramuq9tdka4a4qhrk4pqpjnmgn) can get their hands on everyone's encrypted DMs to one where only relay operators can get their hands on everyone's encrypted DMs.

Not a fix, but definitely an improvement IMO.