The original OP gave out enough information that if I was so inclined, would not have taken much to gather enough info for ID theft. Luckily, I'm not so inclined because I'm a very nice person really .
But her posts and her blog just screamed "naivety" and "insecurity" at me. And while she may be only 21, she's of the age and generation that's had a lot of "computer security" type of information thrown at them, and she should have been much more aware.
I also thought it odd that she nowhere mentioned checking for ID from these visitors, but that would tie in with the general lack of security awareness shown by the public information in her blog.
I have never felt the need to shout about all of the things going on in my life. Even my Facebook is restricted to friends only, and there aren't too many of them. The only reson I got Facebook is because my brother lives abroad and it's a good way of sharing stuff.
I'm hoping the OP learned a few things today, or at least is now thinking her blog over, that hopefully offsets all that naivety. And I don't mean this in any nasty sense, but it may take something serious such as ID theft to help her see sense.