1) owner sets up a website advertising 300% or more/less ROI to users who invest in their “plans”.
2) Unfortunate victims deposit in the hope of receiving good returns.
3) Users get paid with the deposits of others allowing some to say the investments are working
4) The extra publicity and praise helps rake in more and more Bitcoins
5) When payouts become unsustainable, owner folds and runs with remaining money
6) Rinse and repeat at will.