https://blog.wongcw.com/2021/07/14/facebook%e7%be%a4%e7%b5%84%e7%ae%a1%e7%90%86%e5%93%a1%e7%8f%be%e5%9c%a8%e5%8f%af%e4%bb%a5%e6%8c%87%e5%ae%9a%e7%be%a4%e7%b5%84%e5%b0%88%e5%ae%b6/
Facebook群組管理員現在可以指定“群組專家”