public function enabled(User $admin, $wikiId = null)
 {
     $wikiId = empty($wikiId) ? F::app()->wg->CityId : $wikiId;
     if (self::isAnswersWiki($wikiId)) {
         return false;
     }
     // disable if all Wikia email disabled
     if ((bool) $admin->getGlobalPreference('unsubscribed')) {
         return false;
     }
     // If complete digest mode is enabled, do not send views only digest
     if ($admin->getLocalPreference("founderemails-complete-digest", $wikiId)) {
         return false;
     }
     if ($admin->getLocalPreference("founderemails-views-digest", $wikiId)) {
         return true;
     }
     return false;
 }