It's the realities of enforcement that concern me. If you say (as it appears you are implying though I may be wrong!) "we don't really need anonymity online, so

It's the realities of enforcement that concern me. If you say (as it appears you are implying though I may be wrong!) "we don't really need anonymity online, so we should enforce verifiable identity in all online and public interactions" then you open the door to (potentially tyrannical) government involvement of all internet services. For example, the government now dictates how you handle authentication. You can no longer use a simple email + password usage of a public service.