I made money at this too, but I'm starting to wonder whether it's morally superior to running a casino, or a lottery. I made thousands of dollars off of a pack of fools who bet with their hopes instead of the evidence, and at the time I felt very clever, but now...I don't know.
One way to think of it is: when you wager on Intrade because you think the price is inaccurate, are you more like
If it's worth saying, but not worth its own post, even in Discussion, it goes here.