Of course Jonathan can configure the board to require a name to be typed.
I doubt I'll ever exclude any specific names from being used (other than profanity). However, I will probably eventually change the system so that non-users cannot use the names of registered users as pseudonyms.
The purpose of this change will be to prevent the possibility of impersonation, however, one side-effect will be reduced occurrences of duplicate names amongst non-users, since the most common pseudonyms (such as "anonymous") will no doubt already be taken by registered users.
[Hint to our Anonymous friend: If the username
anonymous hasn't already been taken, you may want to register it right now.]
Regards,
Jonathan