This high-security site protects the identity of both witnesses and MafiaLeaks staff, who are thought to number less than 10.
Organised criminals are depressingly numerous in Italy - but so are the people well placed to stop them, added Bobby.
"We want Mafiosi to understand that in any given moment, even right now, someone's aware of their trade and sooner or later it's going to come out into the open. The Mafia cannot function without doctors to treat them, electricians and builders to make their hideouts and lawyers and accountants to hide their money. All these people have the evidence."
The arrival of MafiaLeaks received a mixed response from people working in traditional roles in the fight against organised crime.
Magistrate Nicola Gratteri told La Repubblica newspaper that in principle he welcomed the site.
"MafiaLeaks could be a good way of spreading a certain type of information and shattering the wall of silence surrounding organised crime", he said. Corrado De Rosa, a psychiatrist who provides expert evidence in mafia trials, was less certain.
"This has been done for noble reasons and I wish them well. But we need to remain aware of the risks," he said. "There's a danger we'll see a reduction in the quality of evidence that emerges. And we should not forget that the Mafia clans are already computer and internet-savvy."
He added the system might be used by people to settle scores and by Mafiosi to harm rival criminals.
Bobby said if rival Mafiosi shopped each other, that might not be a bad thing. And he countered that false or useless evidence "would end up in the trash".
He noted, too, the proliferation of digital equipment could work to the Mafia's disadvantage. "We believe smartphones are a real weapon and every citizen has one in his pocket. With it you can record a call, you can copy messages or emails, and photograph documents. As such, every citizen is a potential whistleblower."
But Amalia De Simone, a journalist who has for many years reported on the Camorra in Naples for Corriere Della Sera newspaper, said: "An initiative such as MafiaLeaks that appears to be done for all the right reasons could easily turn into a boomerang."
- Independent