Syntax:  .banname
          .banname <name>

Results:  Banname turns off access to the talker for users trying to login
          or create accounts with certain names  
          <name> is the name that is to be banned from use.
          If you don't specify a name, you will get a list of 
          all the names currently banned.
           This is a toggle for <name>. If the <name> already exists
          in the list, it will be removed.

See also: bannew, unbannew, unrestrict, restrict