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there is no proof its a scam thou, and there is loads of MLM lending websites, are they all scams then? but how long does the scam last in this case?

You can't prove that something is a Ponzi scheme until it crashes. You can prove that something is a pyramid scheme.

This is from BitConnect's own website:

Pyramid economics are fundamentally unsustainable. They prey on people who don't recognise that they are buying into an unsustainable scheme.

Yes all MLM systems are scams.