[NTLDR]

In includes/functions_newpost.php find:

PHP Code:

        if (empty($post['username']))
        {

            eval('$errors[] = "' . fetch_phrase('nousername', PHRASETYPEID_ERROR) . '";');

        }
        else 


And remove it (NOTE, the if AFTER the last else above must be left).

You really should have some sort of default username for posts so I'd suggest editing the QRB HTML and adding a hidden field with a default username in.