The only people making any money in this kind of operation are the operators and people that supply the victims for a referral fee.
Don't add another word to it, and the last reply from the boss guy shows us that people (greedy people) will do anything to get some free bucks, even giving to this ponzi 1625 victims or as they call them referrals (no legit mining company can give you that much in referral commissions) to keep ponzis running. People have no more moral values I guess, shame.
It should be very difficult to keep an outfit like this going for very long now. The difficulty has ballooned so much. To entice buyers they´d have to offer a reasonable ROI which is pretty much impossible if they´re actually mining. So, most people with basic knowledge about how bitcoin mining works will see through it right away.