When they wrote that the rate was 1460. As of today it is 1207. I would say it's a bit ridiculous to claim that's a 300% increase. That's less than 30% after 4 full years.
The SCAM reference is still on XE.com. Your gripe is with them.
I don't think they are saying that the dinar itself is a scam. What they are saying is that the web sights pushing dinar and the notion that some massive revaluation is in the offing are the scam. 4 years later it appears they were right. Some just refuse to see it.