The technical complexity is at the level of AB testing, but the effect is emotional manipulation.
This is ethically murky as people don't sign up to be emotionally manipulated by FB for $. People assume that they would be shown all the good and the bad from their friends.
This is ethically murky as people don't sign up to be emotionally manipulated by FB for $. People assume that they would be shown all the good and the bad from their friends.
http://en.wikipedia.org/wiki/Human_subject_research_legislat...