> Are there some technicalities that make this a particularly hard problem? No but there are major user experience problems with it. Today the web "just works"

> Are there some technicalities that make this a particularly hard problem? No but there are major user experience problems with it. Today the web "just works". You go to a site, you read and do stuff with it, you leave. Now imagine going to one of your favorite sites that tracks this after changing the security model. You're going to get multiple pop ups. Pop ups that regular users are not going to understand. It's easy to understand if it's asking for your location but have you ever tried explaining what plugins are to non techies? Absolutely painful. There is usefulness to this data and there are abuses. Gotta take the good with the bad. Yeah this data can make them mostly identifiable but it's not perfect and unlikely good enough to be admissable in the court system. If you really wanted to protect this data then in my opinion access would need to be removed completely. But this could break many things.