We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
If the rise in the price of oil from $70 to $140 was due to "greed" (the all-purpose explanation of the other side for every economic problem), was the fall from $140 to $70 due to a sudden outbreak of altruism?
The drop is also greed--I'm surprised anyone here would ask such a question. The goal of large, sophisticated traders is not so much to make a good investment, but to create a trend in a market, get masses of less savvy investors on board, then profit from the moves the masses create. The "illuminati" (not literally, just as a metaphor), profit on the long side and on the short side. Profits are always somebody else's money--the question is do you earn it or steal it? See Joe the Plumber, Tito the Builder and Cory the Driller to understand the difference and how it should affect your vote.