Well hopefully the system could be semi-anonymous. So reddit doesn't get your identity, they are just able to prevent you from making another account (or perhap

Well hopefully the system could be semi-anonymous. So reddit doesn't get your identity, they are just able to prevent you from making another account (or perhaps limit it to a few accounts per real person). If they are nice, they don't even need to track which accounts belong to the same person. Of course there is a lot of space for abuse. And it would unfairly lock many/most people out, because services can only accept certificates from the governments they trusts.