But that's the thing with these. Does someone want to buy a lot of coin and not move the market prices? Or does the wall encourage an upward trend since it is well, a wall? Or rather, downward pressure for tons of people to sell into and it can maybe hold? Or... all of the above?!
Large walls are sometimes just manipulative, and will be pulled when challenged. Especially if they are on margin, and just being used to herd the sheep.