A group of people claiming a company is a ponzi isn't by any means a proof.
A group of people claiming that pink unicorns dont exist isn't by any means a proof.
In fact you can not possibly prove they dont exist. Does that mean they are real?
The exact same thing applies to mining hardware backing cloud mining contracts. While trivial to prove, no one can disprove their existence. But if there is as little proof
for their existence as there is for the existence of pink unicorns, you have to be bonkers to assume them to be real. Bonkers or a scammer trying to sell pink unicorn droppings or cloudmining contracts.
A proof in this case could be their announced closure and payout delays
Actually, that wouldnt prove anything, other than its likely a scam, but assuming it did, please note its only possible to provide that kind of evidence
after the collapse, when it helps no one. So stop asking for impossible proof of non existence (ponzi claims), and begin asking for proof of existence from the cloudmining services.