One of the most frustrating (and shady) things I have seen Facebook do is ask your friends personal information about you. I have very little personal info on my profile, but I know that Facebook has all of it. Because I have seen little popups saying things like "Where did your friend so and so go to highschool?"
Then later, you will see a question on your profile like, "Did you go to ... High?" So you know they are storing it whether you confirm or not.
They will also ask "security" questions to people trying to reset their password. They seem to include a few things that are in Facebook and then a few items that are not. This gathering even more details about my personal life that I did not choose to share with Facebook.
I try to frequently seed it with false information. But I know plenty of people are out there just merrily giving up all my personal information to this beast.
Then later, you will see a question on your profile like, "Did you go to ... High?" So you know they are storing it whether you confirm or not.
They will also ask "security" questions to people trying to reset their password. They seem to include a few things that are in Facebook and then a few items that are not. This gathering even more details about my personal life that I did not choose to share with Facebook.
I try to frequently seed it with false information. But I know plenty of people are out there just merrily giving up all my personal information to this beast.