Unless proven otherwise, all online investment schemes must be considered a ponzi. To be proven otherwise means the scheme is transparent not only about how it makes money but all monies invested and profit and loss graphs.
To my limited knowledge, the only transparent businesses online that offer bitcoin investments are casino bankrolling and exchanger services.
Casino bankrolling seems to me the most transparent and can be verified by the investor.
I hope you do not consider my U2cloudmining system as a ponzi sheme.
Unless proven otherwise, all online investment schemes must be considered a ponzi. To be proven otherwise means the scheme is transparent not only about how it makes money but all monies invested and profit and loss graphs.
If something seems fishy about my U2 system you are welcome to let me know.