I mean, as soon as PBOC started their investigation Chinese Bitcoin Exchanges turned off their fake volume engine

We are not just talking about fake volume, fake volume == fake price == bad reputation == another Gox.

We all followed what Chinese Exchanges was doing because of their volume, they were No.1, BTC/USD volume could not be even seen on the pie chart compared to BTC/CNY volume.

Did anyone asked Bobby Lee yesterday during his AMA on Reddit about this volume issue?

I mean there is no logic that halted withdrawals could influence volume at this magnitude, just look at the photo below.