We seem to start to really fail making distinction between anonymity and pseudonymity. "Anonymous login" means you provide no identity information whatsoever.

We seem to start to really fail making distinction between anonymity and pseudonymity. "Anonymous login" means you provide no identity information whatsoever. If you're "person #123456789" or "f93f9211-9f49-4bad-ad34-e00f8c536b0f" or whatever - you're not anonymous.