This is wrong section for this subject.
I think you are saying about share referral comission with your referrals, right?
It works, but you need to know exactly how much each referral is producing, some sites don't display it, they just show the maximum comission you earned from referrals, making near to impossible to know how long each of them is working. Some will work more, some will work less, so the pie must not be divided equally.
Depending the sites it can work, just make sure the referral comission is showed in details, from each referral specifically.
so......a pyramid scheme?
If they are sharing comission it's not a Ponzi scheme.
But I think OP wants to invest in Ponzi schemes as well (cloud minings) to practice this system.