Eugh... as much as I love fermented foods, and even after all my years in HK, yesterday I went past a place reeking of it and am still baffled by stinky tofu. It's SO GROSS. How did anyone ever come to an idea that that is edible? I think you would have the policed called after you if you tried to make it in Italy.
There is a fermented tofu kind of sauce that is like blue cheese (right?). That I can imagine there would be an interest for in Italy...
But this is maybe the wrong place to ask, as many expats will complain they don't feel integrated with local culture here.