Agreed, a key pair is certainly better than having to provide an email address in order to create an account. But it's not complete anonymity if you always use that key pair and with the same relays. In addition to using the same lightning address. In addition to any further identifiable information provided through profile data. The relays will still see your connecting IP, user agent, etc. But this is what #Anonostr seeks to solve is to disconnect that trail you leave behind. By using a new key pair for every note, and eventually through relay hopping, it will make it nearly impossible for someone to try and track and/or link all of the npubs together or from one particular relay.

But you can make as many key pairs as you want .. there is absolutely no limits . Besides changing the IP address is as easy as turning off your router .. I am not denying there could be a usecase for such developments ..but these are irrelevant in post #nostr world .. They were important in legacy web .. and feels like people just couldn't get over inertia ..