The fact that you can still withdraw in no way proves that it is not a ponzi. All ponzies pay at the start for early investors, and often they pay good - that's how they attract new investors. I am not saying this one is a ponzi for sure, but it does little to nothing to prove otherwise in my opinion.
I have started "making money" with scrypt.cc a 10 days ago. My setup is to buy KHS as soon as I earn - reinvest.
I have invested 1 BTC and I have been buying KHS with my earnings since. The result:
I have increased my KHS from 110 000 KHS to 115 000 KHZ.
At the beginning my Estimated Daily Income was around 0.019...BTC
two days ago it increased to around 0.020.... BTC
But today I am back to 0.019.... event thou I have bought 5000 KHS with the earnings.
(The drop in earnings happened twice already)
My point is: the scam they pull in here is: you will never be able to get your money back. (Unless you sell You KHS)
If you just invest and collect your earnings without reinvesting - you will never get your money back.
If you reinvest you will never earn more than at the beginning.
I have been observing for some time the top earner who currently is pulling around 1145 USD a day.
When I started watching him he had around 27, 000, 000 KHS and the earning 1166 USD a day.
Now this guy has 30,049,016 KHS and his earnings are 1145 USD a day.
He increased his potential by 10% but nothing in return!
Can you see my point here.
Maybe someone can tell me something I cannot understand here. But my calculation are quite simple........
Anyone with a bit of brain can draw conclusions