A painful reminder that you can
never get too comfortable or take for granted any social network feature you
may have grown accustomed to and / or rely on.
Such changes are generally driven by potential for increased profits, dissatisfaction with being just a simple and reliable social network or expressing a sadistic tendency by allowing you "
friends" and employers to easily access anything and everything about your past that you hoped remained buried very far down your
wall.
Facebook timeline is an excellent example of Zuckerberg rape.