I have to admit, I was stupid enough to actually try and invest a small amount just to see whether that's just another cheap ponzi scheme or not. When I withdrew the coins, I couldn't believe what I had seen... They actually sent the requested funds. Still, definitely not gonna invest a secound time, since there has to be some kind of scam behind it!
And I highly discourage anybody from doing so(!), but I still can't comprehend how they actually paid out what I had requested.
Maybe some kind of a snowball system?