Monetary awards for social media interaction .... what could go wrong?
People engage in social media to connect with people in an honest exchange .... once you monetize that interaction, they no longer interact to connect with people, they start interacting just to make money.
Greed also takes over the system because there will always be a group of clever individuals who will game the entire system to make as much money as possible.
Eventually the social media interaction is no longer social .... it's just another cheap way to make money ... and most people stop using it and start looking for other places to interact with people.