A cursory search of media published in the last month [1][2] shows those can be used to productively communicate in Chinese languages. You can argue that it is outside of what is prescribed in a table, but if not Pinyin, then what writing system is being used here?

[1] http://finance.eastmoney.com/a/202107151999911843.html [2] https://www.marieclaire.com.tw/lifestyle/art/58762