I think he is implying that running a casino is a scam too. If you prey on people’s ability to analyze numbers without supplying them with hookers and blow, its a scam in my book.I'm not sure the word "scam" means what you all seem to think it means. There are plenty of illiquid securities with wide bid ask spreads, that doesn't make them a scam. There are plenty of instruments you have difficulty predicting, that doesn't make them a scam. You can make a market on Nadex, you can be the counterparty to all those punters you think are sure losers. The real question is, given your posted beliefs, why aren't you making money hand over fist on Nadex?