It is worth noting how popular questions in English are on this site (this is just a recent example) compared to those asked in Italian. I had always assumed that this site was the Italian version of what EL&U is for native English/American speakers, but I was wrong.
My impression is that the nature of this site is essentially that of Italian for foreigners. Though there is nothing wrong with it, I think there are important implications for the kind of questions and answers that are to be expected here.
It is clear that the use of the Italian language limits the usage and the helpfullness of the site so, probably, all questions and answers should be in English and, for instance, rules about possible translation requests of foreigh expressions into Italian should be less strict than they actually are.
My impression is that some minor changes might attract more users and make the site more enjoyable to foreigners and at the same time increase the "traffic" in terms of "Q&A".