>Buzzfeed's Justin Bieber haircut quizzes, however, do not provide any value to the users, apart from a tiny fleeting endorphin rush, maybe. Depends on whether

>Buzzfeed's Justin Bieber haircut quizzes, however, do not provide any value to the users, apart from a tiny fleeting endorphin rush, maybe. Depends on whether you measure people's stated or revealed preferences. Traffic stats make the revealed preferences pretty clear.