Dreamwidth's comment security settings are historically from the least to the most open, with no ability to pick out single classes of commenter that are of disparate openness settings.
Currently, one can allow:
All (anonymous, all OpenID, all users, all users-and-OpenID-on-access-list)
Registered users (OpenID that have registered an email address, all users, all users-and-OpenID-on-access-list)
Access only (all users-and-OpenID-on-access-list)
None
Adding pseudonymous commenters would most likely insert a "All named commenters" level, including pseudonymous and OpenID users who have not registered email addresses but excluding anonymous, between "all" and "registered users".
I am sure that some users would also prefer to only allow commenting from pseudonymous users with confirmed email addresses, if this could be reasonably implemented (confirm email address once per browser session, leave comments queued in some way or screened before email address is confirmed), and perhaps class this with the Registered Users comment security level.
For actual use cases where anonymous commenting would be allowed but pseudonymous commenting would not be, there are a *very few* journal-based games where the rules are that only anonymous comments may be left, and the journal owner will delete any comments that are left with usernames attached. However, since these games are accomplished by allowing all comments and then (after comments are left) enforcing the no-names rule, I do not feel that there is likely to be a need to write code to allow anonymous but disallow pseudonymous.
no subject
Currently, one can allow:
All (anonymous, all OpenID, all users, all users-and-OpenID-on-access-list)
Registered users (OpenID that have registered an email address, all users, all users-and-OpenID-on-access-list)
Access only (all users-and-OpenID-on-access-list)
None
Adding pseudonymous commenters would most likely insert a "All named commenters" level, including pseudonymous and OpenID users who have not registered email addresses but excluding anonymous, between "all" and "registered users".
I am sure that some users would also prefer to only allow commenting from pseudonymous users with confirmed email addresses, if this could be reasonably implemented (confirm email address once per browser session, leave comments queued in some way or screened before email address is confirmed), and perhaps class this with the Registered Users comment security level.
For actual use cases where anonymous commenting would be allowed but pseudonymous commenting would not be, there are a *very few* journal-based games where the rules are that only anonymous comments may be left, and the journal owner will delete any comments that are left with usernames attached. However, since these games are accomplished by allowing all comments and then (after comments are left) enforcing the no-names rule, I do not feel that there is likely to be a need to write code to allow anonymous but disallow pseudonymous.