content: Oh, I don't really blame anyone in this issue. Maybe I should said "it might be" instead of "it has". It's just my thought.   I'm hardly agree with you about blame culture. Everyone know that there is possibility to set "who can see my number/ date birth/ address/interests etc.". A lot of people give possibility to see their personal info for everyone. So it's not a surprise that someone can collect it. All in all, I think Facebook is't guilty.