I'm not sure if I agree with you @knowledgefruit

We're talking about transparent public blockchain, where all data are quite available. And we can sometime "connect dots".

Looking at the time of dump being executed and time of those 1500 bitcoins being sold - one can easily notice that it's exactly the same time-frame. For me it's quite obvious that this has been market manipulation by that one "whale" and he timed market very well. Triggering mass liquidations (which also followed right after that sale and brought price of BTC rapidly down within just few minutes).

Cheers, Piotr