Zero.
I'm not that often afraid to share things about myself (to a point). Sometimes that ends up causing issues. Usually those things are as simple as stating my beliefs. A few years ago on Facebook I put my religion as Atheist. My aunt flipped out and called the rest of my family and they all began worrying about me. My dad actually woke me up in the morning just to tell me that I shouldn't be like that and whatnot. Guh... Sorry if this classifies as ranting.