https://sn.1w6.org/file/arunisaac-20190720T095510-dwmrr2e.html
This is interesting and gives me an idea. Could we do something similar for email? Instead of giving people our actual email address (real object) to send us email, we give them a random (so it's unforgeable) newly generated alias address (proxy object). If they start spamming us, we delete the alias. If they share the alias with a spammer, we can hold them accountable. Are there any systems that implement this?