''Cldmine turned out to be a scam''
This sentence isn't accurate, it didn't turned to be a scam, it is a scam from the beginning, in fact every ''cloud mining'' service is a scam until it shows a valid proofs of mining activities (even with that it may collapse at any moment)
Try to look at this from a miner's perspective: why would a miner need
you? He has his mining rigs, makes a nice profit, why would he go through all the hassle to create a website, give away free hashing power, and share his profit with you?
This should explain why real miners don't sell cloud mining contracts. The ones that do sell this aren't miners, they're running a ponzi scheme. They need new money to pay the old "profit", and as long as more money flows in than out they're good. The moment the inflow is lower than the outflow, they take their profit and disappear.
This has happened over and over again, and still people are "investing" in cloud mining.