Good thing to have. We also just need to improve DMs on nostr directly, because people are going to use them if they are here and no many people think about the data leakage when they go to use them.

Not the DM content, but all other metadata (who you are messaging and when) is effectively public. If you take an npub and log into a client like snort.social you can actually see the inbox (without message content) of any account