Bux.gs a scam now??

Very recently, I have been encountering a problem with bux.gs. Well, a lot f people believe that this is a genuine site and I have seen a lot of payment proofs. I had no referrals in this site and despite of this fact, I had reached around 4$ in this site. Suddenly, for the last week, I am facing a problem in this site. Whenever I click an advertisement, No page loads but only a page with a .GIF image loads. At first, I though it must be some technical problem and sent a mail to the support system. But, even after a week, I have not got any reply. The problem still persists. I do not know if these are the signs of a scam in making or not, but I have left the site (Or what else I could have done!). I just wanted to share this piece of experience with my readers.