Since Laythian posted the link to an article about the CEO of Next.exchange, Chris/Christiaan van Steenbergen, and people started to talk about it, action must have been taken to get the article removed from the internet. So the link Laythian posted is not working properly. After a search I found the article archived on archive.is. Laythians warning seems in place. The article is in dutch, but google translate may help you out. Or maybe some dutch guy/girl can translate it.
http://archive.is/I7wBCOn this archieved page scroll all the way down and then move the scroll bar to the right to view the complete article