An ongoing pyramid type scam can severely damage Bitcoin image once its goes bust. Bitcoin has barely coped with high profile happenings. We do not need another one
Darkcoin is making people invest in masternodes and drying the supply to artificially inflate its price. While the creator has loads of instamined supply
We need to contact law enforcement agencies ASAP
Most, if not all, of premined coins are scams. You need to inform the investors, not law enforcement. No crime has been committed yet.