There's been a ton of so called "cloud mining" sites that are offering absurd guaranteed profits that have been exposed in the past, but unfortunately, there will always be people falling for these types of scams.
Absolutely true, it's a pity this sort of scam is still profitable for scammers and depending on the amount of new cloudmining scam sites this must be very profitable. 
I still hope we will get somewhere to the point nobody invests money there, but this seems to be hopeless. It's even a good thing if we can protect a small amount of users from this ponzi-scam sites and make the work for scammers more difficult...
