I have a social question here. I assume that I will not get an answer to this but I think it is still worth asking.<p>If you were developing this feature, that is in my opinion a very interesting problem from technical point of view, then what were your thoughts about the possible social and moral implications of such feature?<p>For example, to give you an idea, did you think that this may outrage people? Or they may at least find it intrusive?<p>If you had any such thoughts, then how did you mitigate them?<p>Also is there some kind of program in Facebook that addresses these kind of problems?<p>I could not throw a rock at you. I am just interested about your personal experience.