I met Gianni and Marta in Milan last year and they seemed quite reasonable. I paid cash up front. Got my ties 2-3 months later. No hitch. You do have to see the swatches in person because I don't think everything he carries is vintage. Most of life is not black and white, there is lots of gray.
I think people have to realize the Internet magnifies ideas, both the good and the bad. That's why you see some things being over hyped. That's why people get pilloried on Twitter for stupid mistakes. It all part of the same process.