问题是用户votes_total 不存在，正在跳过。见下文：

   $args = array(
       \'meta_query\' => array(
          \'relation\' => \'OR\',
          array(
             \'key\' => \'votes_total\',
             \'compare\' => \'>\',
             \'value\' => 0,
           ),
           array(
             \'key\' => \'votes_total\',
             \'compare\' => \'NOT EXISTS\',
             \'value\' => 0,
          ),
      ),
      \'meta_key\' => \'votes_total\',
      \'orderby\' => \'meta_value_num\',
      \'order\' => \'DESC\'
   );
   $users = get_users($args);