I believe you are describing exploits that could be used in targeted surveillance rather than mass surveillance and manipulation which are the main concerns in

I believe you are describing exploits that could be used in targeted surveillance rather than mass surveillance and manipulation which are the main concerns in social media. Targeted surveillance requires identifying targets and how to reach them. If a bunch of anonymous users are using somebody's social media server via TOR or VPN, I am not sure how those individuals could be identified and targeted, but please enlighten me.