I am not sure if they are a scam or will be a scam or not, However the great thing all of these kinds of sites know , is much like this site, they are in Norway (so they say) so even if you wanted to "go after them" are you going to waste the costs of a flight to Norway try and find them spend the fees for a hotel to wait for the case to even hit court and then pursue a court case against them which will most likely end in a massive flood of injunctions or biased court ruling as you are a foreigner sueing a person in Norway ( or any other country for that matter).
As far as sueing the people promoting these sites, thats another wasted court date and lawyer fees, you can not hold a person accountable for promoting a site he had no ability to administer or involvement in. He is spreading his "opinion" of the site as per his results. You as the victim must do your own research and keep yourself from getting scammed. Unless you can prove he never got 1 single payout from a site, or you can prove he himself had administration or decision making abilities for the site in question, you don't have a leg to stand on in court.
If you have yet to realize the scammers and thieves in the bitcoin world have more rights and abilities than you the victim. The best thing to do when we get scammed is move on take it in the ass and accept there will always be low life assholes trying to make a quick buck. That is life, and we have no choice but to deal with it.
However in addition to thier rights and abilities to get away with shit, please keep in mind spreading FUD about a site with nothing backing it up, calling them a scam and stopping people from using a site thru your own unsupported opinion of what they may do in the future is considered slander and could result in interruption of business and you yourself could find yourself in court fighting a handful of overpaid attorneys for slander and interruption of business.
You are not sure if they are a scam? Well, they do not anything to prove that they are not.
And Norway is just around the corner, although, they are not where they claim to be. So it is more likely they sit somewhere else...
So you think that there couldn't be a court case against people who promote the site? Well, read the legal papers regarding EKC in Europe and then rethink....
And FUD? Read at the beginning of the thread. I would LOVE them to bring me to court for slander, for then they would have to tell me who they are, where they live and what ASIC-producer gives them the equipment for a better price than to anybody else. Guess what: They will not file any lawsuit, for they don't want to answer all these questions. This makes them - you guess it - a scam.