I've noticed something about Facebook, and I'm pretty confused. Say, for example, a girl uploads a picture of herself. Then one of her friends comes and says that she is pretty. Then the girl who uploaded the picture disagrees and says she is ugly. Then the other girl says she is pretty again, and the other one disagrees and it keeps going and going. And, I'm pretty confused.
Why did the first girl even upload the picture if she thought it was ugly?