it would work on new sites now too but it should be illegal i dont use it and no one should. for thread creator: you can try ponzies but most probably youll get busted and owner will run with your money
It was supposed to be a joke it never worked the double-spends only appeared on blockchain.info block explorer and no where else.If you would have taken at least 10 seconds to check the link you would have noticed that it doesn't work.