Comment author name = user name by default? My website can only be accessed by authenticated users. How can I automatically make the author's name the user's name without giving users the option to input anything else in the name field?
Well, correct me if I'm wrong, but from what I know (and based on a check I've just done in D6 sandbox) logged-in users do not have option to change their name, they see their username displayed in normal text instead of form textfield. So that's exactly the behavior you're looking for?