"Professor" Jiang is not an actual professor, that's just his screen name. I am simply replying this to inform others who may be misled by his screen name, his legal name is Xueqin Jiang, he's a former Chinese High School Teacher. Image source 1: https://web.archive.org/web/20260115172240/https://global… Image source 2: https://www.linkedin.com/in/xueqin-jiang-93606258