Look at the orderbook on bittrex:

A person has to ask why, with such an absurd depth/spread, those buyers don't actually buy the coin high enough to even the spread and "get rich".
The likely answer is that they are only trying to get others to buy the coin high enough to let them dump the massive premine.
Duh
lol never had much BTC have you?

You put up a wall like that, not just for price support but also for accumulation. You give big holders an opportunity to sell into your wall whenever they want out without crashing the price while not having to buy a coin at inflated prices.
Even I have done this on lower market cap coins with great success, and I'm no whale.