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The advantage of email is that you own your list.

Exactly the same concept as owning your followers tied to your Hive account.

Yep, except without the email part.

Think of your Hive account as an alternative to an email list:

https://leofinance.io/@forexbrokr/synergy-between-your-email-list-and-web3-account

Yes exactly

Paywalled content on-chain but encrypted. Can only be decrypted by people who subscribe to your premium feed of content

You can write free content (as you do already on #hive)

Additional content you write can be paid only

This capability looks like a game-changer for bloggers, especially those who produce newsletters. It's also a practical use case for NFTs which has nothing to do with gaming or play-to-earn. I look forward to seeing how this works out.