Seems like the main research company that exposed GSX has made a business out of exposing Chinese public companies

https://grizzlyreports.com/research/

Some interesting stuff here.

The company of course refuted the research with some vague stuff about APIs having encryption so the data would be wrong. This was back in June and the stock seems to be still going along strong... http://gsx.investorroom.com/2020-06-03-GSX-Refutes-Grizzly-R...