Ponzi scheme? Have you heard about it before? Yes Dualmine is one great Ponzi scheme which last 2 years, isnt bad but some Ponzi took 4-5 years before to be clean from internet, 2 years nothing exceptionnal.
What alert me, No pools, start mining Ethereum Classic in full 51% attack when no exchange or pools are working with this coins right now, when you ask about their farm "Cant say anything safetty reason" at least add a movie nothing will happen I suppose... ah ah ah Payout more & more late til they totally stop paying customers now from 3 weeks,,, Dualmine turned what they are: SCAMMERS nothing else!