You just need poisoned relay and client and this is broken. I'm not saying your proposal is impossible, but my mind is stuck on the untelling of a secret example nostr:nprofile1qqs8x9lez0pauuu7sw4jmhr8qz50tjh5t7k95qkx4zrt2hhekl356sgpzamhxue69uhk56t8vauhgmmd9ejxgmnn9ehx2aqpz4mhxue69uhk2er9dchxummnw3ezumrpdejqz9mhwden5te0dehhxarj9enx6apwwa5h5tnzd9aqye5vk4 used. And I can't imagine how to achieve this in a system on every level.