Sorry I was meant to say that in itself it does not, but in combination with https://github.com/nostr-protocol/nips/blob/master/59.md it solves the metadata issue.

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NIP-44 is meant to address it and is already implemented in many clients, e.g., Amethyst, OxChat. https://github.com/nostr-protocol/nips/blob/master/44.md

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