Of course, I am not describing feedback generally but instead a specific kind of feedback called reinforcement. The quick response that publicly says "I liked that." Like a parrot pecking away at the lever, I demand my treat.
I don't know so much where I am going with this, except to say I am noticing this in myself: a strange discomfort in not knowing what others think. As psychoanalysis reminds us, Che vuoi? can be a ruthless question--and no more so than in online social networks.