I don't really know if this exchange is a scam, it's a small exchange, but an old one.
ANYWAY: the website has been blocked for EU countrie for 7 days now and I have no news of the situation (just email asking me to wait without any technical explanations).
So... If you want to live dangerously and are ready to see your money kept behind a wall (or already spent in the streets of Santiago), then this website is for you
Personnaly I wasn't ready, and I still am not !
If you read a couple of post on this thread or even the trust rating of this exchange on the first page. You'll see how negative they are. There are a lot of negative feed backs that they've received and complaints that are still kept coming. I checked their website and saw 600+ online people and that's not a lot knowing that this exchange has been there for so long. I guess threads that are against them and accusations about them have helped people but still there are a couple of hundred people that uses them.