how does crushbot on facebook work?

[Xeno]

""Facebook does not allow users to track profile views or see statistics on how often a particular piece of content has been viewed and by whom. Third party developers, however, may offer applications that provide some of this functionality. Please keep a few things in mind when using these"

People need to pay attention to this bit:
"Third party developers, however, may offer applications that provide some of this functionality. Please keep a few things in mind when using these""

That's why I believe that they base your crushes by how many times they have viewed your profile. I mean, the crushes I got were not randoms, they were close friends of mine and chances are close friends would view your profile more than a random person. I did the quiz 5 times and got the same result.

To be honest, I'm a scared when if one of my friends do this quiz, because they might find out I'm stalking their profile or something...