I found the description of common bad practices by Bobby Lee at CoinSummit
a lot more disturbing than the risk of a China ban.
Along with the telltale signs to recognize those practises, he mentions Chinese exchanges padding volume numbers with zeros, selling to itself, repeating sales(without any real sales taking place), phantom liquidity causing flash crashes, which to me sounds a lot more damaging than the chance of these exchanges being shut down.
I don't understand what he means by saying that it is a common occurrence in China. It's okay to mess with the numbers if everyone does it? Do Chinese traders like to be taken for a ride? Or is he only talking about the exchanges screwing over their customers and that it's okay if everyone does it?
Suddenly the ban on Chinese exchanges doesn't sound so draconian anymore.