I don't think Vincent is a scammer, he's a nice person.
At least was with me, he helped me a LOT in the past when the Aujard exploit was out there and with others things.
Also about this Rafael that they're saying there, i know him, he's the biggest scammer here in brazil, every brazilian who play KO know him. He tried to scamm me a couple of times.
He doesn't scamm KO people only, he steals exchange houses. And has already been arrested for it.