you know when you set up websites for yourself like on facebook, youtube or twitter?
how much true information about your age, location, gender, interests etc do you put on?
even if there is a private portion on that website, do you trust it enough to post your private information on that website?

personally i post ZERO true information on any website. because you can never trust the web. even on supposedly private sections of facebook, it is possible for facebook to change its privacy policy or be hacked.