On 4/15/23 12:48, John Levine wrote:
My proposal is completely decentralized in every respect except one: Alice has absolute control over the set of people who can communicate with Alice.I believe it will work technically, but I don't see why it would be useful. Mail systems have for a very long time let you only accept mail from people in your address book, but hardly anyone does that. We have decades of experince that tells us that the introduction problem is no easier than the spam problem, and equally that a key reason people keep using email is that you can communicate without prearrangement.
I don't disagree. However one reason that people sometimes
prefer to use a messaging service other than email, might be that
in some cases there are advantages to NOT being able to receive
messages from strangers without some sort of prearrangement.
Keith