https://blog.wongcw.com/2023/06/05/%e6%9d%ad%e5%b7%9e%e5%b0%8f%e4%bc%99%e7%94%a8griefbot%e5%be%a9%e6%b4%bb%e7%a5%96%e7%88%b6%e7%9b%ae%e5%89%8d%e5%b7%b2%e5%88%aa%e9%99%a4%ef%bc%9a%e4%b8%8d%e6%83%b3%e9%81%8e%e5%ba%a6/