I.E. HUGE buyer places HUGE buy order at market price. All the market price sell orders get filled, all the market price sell orders at price + 5, 10, 15, 20, etc. get filled. However this spike would probably be momentary and there would be a significant correction.
All the sell orders spaced from 250, 500, etc. on will simply slow down any rise that happens. A lot of people learned their lesson from the sharp rise to $260. Same thing with buy orders. As we saw in April, there are enough buy orders at and below 50 to catch a pretty sharp falling knife.
Some walls push, some walls pull, some walls do both, depending on what the rest of the market is doing.