1. Social media is opt-in
2. You are compensated by accessing an incredibly complex system and network for free where otherwise you would have to maintain or pay for some kind of infrastructure.
(I am playing the devil's advocate here because it is interesting to me to understand in what way other than granularity this would be any different from the way the media has been communicated to us for a long time)
1. Nielsen boxes were and are opt-in.
2. You were and are compensated for keeping one.