A lot of scam only proves that there is a lot of genuine demand. Instead of respecting consumers and really protecting them from scammers, government simply says them to fuck off. It's like with bad parents: child wants to ride a bike, but instead of helping him with safety, he's denied to have a bike.
"What consumers are not told is that the Dinars can be redeemed only in Iraq, as most of the established currency exchange houses and banking institutions cannot convert the Dinar to US dollars. Since no exchange exists for the Iraqi Dinar, dealers can charge whatever they want to sell and buy back the Dinars.
"
I recall a lot of extremely scammy sites doing that a few years back.
http://www.dfi.wa.gov/consumers/alerts/iraqi-dinar-scams.htm
http://www.mint.com/blog/investing/iraqi-dinar-scam/