Mostly getting unfair advantage over regular miner.... (selling their coin before large supply has flooded the market) which is kind of unfair...
So basically they got scammed before they were able to scam anybody...
(how bad is that ? Everybody should thank the scammer for helping the community)
hehe a man not afraid of making controversial statements...
well it is a bit like the "popular" false money scam, when people buy really well imitated false money at half price, thinking they will be able to exchange it easily and end up with nothing as the guy just disappears with their money.
(usually they don't go to the police for obvious reasons...)