It is one guy putting the walls and they using their other acc on the exchange to sell/buy from themselves. It makes it looks like there is incredible buying support when in fact it is the same guy trading with himself.
I still cannot understand how those big sellwalls gets raped so quickly, like the 27 wall. I would expect that the seller would pull back his order, but no.....it gets instantly eaten

Like I said earlier, all I see is whale blubber.