I think it is a challenge to find the balance between sharing and being authentic online and not giving away personal details that can be used against us. A lot of people do things like fill in these cute surveys to see what type of character they are or something equally silly. They don't realize that these are just scraping personal data. There's something going around these days about the first 7 jobs you had. When you open certain online accounts, you have to answer a security question. What type of questions are these? Your first school, your mother's maiden name, your first pet or teacher or car or job. If some hacker or identity thief gets your password to your account, it may not be too hard for them to find the answer to your security question in some other data set. At least, that's my fear and why I stay away from those types of things. Most people have no clue how big the data sets are and how easily info from one set can be connected to another. Sometimes this can be a good thing. It's the potential for nefarious use that worries me.