Why it keeps dumping
Because they issued a huge number of tokens and the staggered, ongoing ICO process (already several million dollars too big) means there are far more sellers than buyers. Everybody who wanted to get in on the ICO has done so already. Why they don't close it up and concentrate on release of their final product is anybody's guess. They certainly don't need any more money.
They are too gready to stop. I cannot imagine how they will spend 1 billion. Maybe they are going to attack and dump Ethereum to take its place? I don't have any other ideas.
nothing to do with greed. you should've invested your time in learning how smartcontracts work instead of wasting space here.