Don't bother try to track those whales just with order-book since there's too few info and surely those whales aren't dumb.
The regulated Exchanges know exactly who they are and they are reporting this to the authorities. We saw what happened recently with the SEC that started to investigate market manipulation. It would only make sense to use multiple accounts under different names to do this on a large scale and some of these whales work together on different exchanges to avoid detection.
It will just become more and more difficult to detect this in the future, with the increase of the use of decentralized exchanges.
