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.

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?

For example, to give you an idea, did you think that this may outrage people? Or they may at least find it intrusive?

If you had any such thoughts, then how did you mitigate them?

Also is there some kind of program in Facebook that addresses these kind of problems?

I could not throw a rock at you. I am just interested about your personal experience.