Yijie probably looks confused about this matter. It is highly likely that Binance is unaware of it and did not expect such a result. It remains to be seen whether the market maker has committed any wrongdoing. Is it possible that there are other players behind the scenes or using leverage restrictions to complete a one handed snowball? Anyway, wait for the announcement from Binance @ binancezh. Referring to the previous incidents of market makers such as GPS/Move committing misconduct, Binance has given good answers. I estimate the user's loss, and there is a high probability that Binance will ultimately pay for the cover.