[Cthulhu_]

Some countries already do that - China, obviously. UK wants you to upload your ID when visiting a porn site (think of the children!). Japan has ID requirements for certain types of websites.

And of course, both Google / Youtube and Facebook have had a real name policy in place for a long time, to much objections. I've gotten a popup from Facebook asking me if the name of a friend who intentionally uses a fake name on Facebook to try and avoid her stalker is correct.