For me personally, it is not a secret for a long time that the volumes on exchanges are in general drawn. This can be seen primarily on real live orders in the order book.
Yes it's no secret but at least we have reports now to validate what we have known in the past. Although we have seen this happened in 2017 when PBoC suddenly put a stop on some Chinese exchange for pulling such act before.
But as the market matures, and reports coming in, we as investors are now aware that it was indeed happening so we need to watch what trading exchanges are we going to used so that we all know that volumes are not fake and you are not in the position to be one of the victims of this fraudulent act.