Until an indexing service becomes a defacto standard, once again making it centralized. This is what I meant about federation (i.e. sharing your name lists) gravitating towards centralization.

> Squatting on previously-unused-in-the-service IRL identities doesn't matter at all.

It does when I can register thousands and thousands of names. This is why it must be too difficult for squatters and not too difficult for users.