The way the insiders manipulate the market with these premined tokens is explained, and note the high leverage employed which means if they run out of tokens to margin with, it is like a house-of-cards and will implode to 0 in a heartbeat:
https://bitcointalksearch.org/topic/m.15340159
They siphon off BTC for as long as they can and high as they can pump it, then game over and they walk away with BTC and the fools walk away with empty bags.
Also some (including the Daoattacker) allege that the USGovt + MIT (university) are complicit in the ETH pump:
https://bitcointalksearch.org/topic/m.15343686