public function getRepliesEnabled()
    {
        // Check reply option
        if (!$this->getOption('nested_comments')) {
            return false;
        }

        // Check if depth is limited
        $maxLevel = $this->getOption('nested_depth');
        $notSpam = ($this->SpamClass() == 'notspam');
        return $notSpam && (!$maxLevel || $this->Depth < $maxLevel);
    }