By legitimate I mean their business activities are what they claim. There is no way they are actually generating the huge returns needed to pay out their loans to investors by the secret methods they claim. They are not a legitimate buiness.
What business? What activities? On the website there is not a single word about fiat, they accept only bitcoin. That's why I said that I don't care about their legitimacy. I live in a country where bitcoin is not legitimate, so I do not care. And if it was about fiat then of course you were absolutely right, but it's not.
You will never get definitive proof either way unless they open up their records to a third party. Why do you think the service should get a chance? What makes you think they are different then any other ponzi before them?
At the moment their service works, unlike those who are already failed. This is the main difference. And the chance is necessary because I need such services, and I am sure that I am not alone.