Just fed up with the way Italy changed over the years. The Berlusconi government appointing it's fascist coalition partners to senior cabinet positions was a national disgrace. The xenophobia and homophobia got to me in the end.
It's also the only country in which my wife has ever experienced racism, she was very shocked.
That said as a tourist you will have a great time, it's the most beautiful country in Europe IMO and the nice Italians are really wonderful people.
I bear a grudge, please don't listen to me!