[Решено] ZOO Blog: Логин, а не имя в комментариях - ZOO 3.х

// create author object from user  
$this->_author = $this->app->commentauthor->create('joomla', array($user->name, $user->email, '', $user->id));

// create author object from user  
$this->_author = $this->app->commentauthor->create('joomla', array($user->username, $user->email, '', $user->id));

$comment->author = $user->name;

$comment->author = $user->username;