Well you are just copying from my kind 0 when my kind 0 updates. And that is a lot of copying and republishing overhead. And yet you still have to find my kind 0 to do that, which was the original problem.  So I don't think you've solved anything.  Unless you are saying that you would look into a bunch of other people's kind 3 lists to see if any of them know where I have moved to.  So what you are doing is creating a bunch of redundancy of my kind 0 information distributed all around the place.  We could achieve the same thing more simply by just having relays copy/push people's kind 0 (or 10002) information to all the other relays they know about once they first discover a new version... a kind of relay-to-relay propagation... or even have clients blastr the thing in the same way.