Seems to be a kind of wishful thinking that comes from corporate shill bear trolls... They imagine an endless supply of coins that banks might be able to dump, and sure good luck with that.
Let's take the hypothetical that bearwhales might have 30k BTC that they could dump. Somehow the bearwhales would have to be able to acquire those 30k coins without significantly moving the price upwards. I have long had a theory that bearwhales engage in a circular kind of rotation of coins. They purchase coins off exchanges and then they dump them on exchanges and that way they are continuing to put downwards pressures on the price; however, they can only acquire so many coins over the counter even if they want to continue to operate at a loss in order to attempt to push BTC prices down.
But they do not need 30,000 coins in order to dump 30000 coins. They can have only a fraction of that amount of coin or just a whole lot of fiat, and use margin trading. If their big dump causes a downward reaction, they can make a huge profit if they close their position at the right time. Then they have even more assets to pull off an even bigger short, next time around.
I agree, and I don't consider my theory regarding what they are doing to be comprehensive because I am sure that they have a lot of tools in their quiver (mixed metaphores), and some times they may NOT be strictly motivated by profits in bitcoin, if they perceive that downwardly manipulating bitcoin can profit them in other ways (or other assets). Furthermore, even though we might ascribe a lot of resources being available to bearwhales, I discount claims that their power is unlimited because there is ONLY so much that they can do when the trend is against them, so yeah, the trend is your friend to attempt to exacerbate conditions while you can, but once the trend changes, sometimes they will lose control of such trend.. and I think that this happened a few times in recent bitcoin history including the early 2016 break above $500 and likely the August 2017 break out above $3k...
Certainly the bearwhale fucks did not want BTC prices to break above $500 in early 2016 or the price to break above $3k in August 2017.. but they lost control and/or ability to keep BTC prices down in those lower price ranges.