[OpenID] Requiring Pseudonymous Identifier

[SitG Admin]

>However, it does sound like a strange design decision.  I don't know 
>why an RP can't handle anonymous users without the help of an OP 
>giving those users a label.

It's for general access, acclimating users to OpenID by having them 
use that instead of a more traditional "site is open to everyone" 
approach; for their privacy, though, the RP doesn't distinguish 
between users that way. They all have the same (group) ACL, anyway :)

-Shade