I really dig games where the pc gets filmed or streamed against their will, and while I don't know any games whose core premise is about online exposure, a few that feature it:
- Trap Quest (certain predicaments will upload video footage to the internet and/or your friends and family)
- Happy Heart Panic (a few scenes in one of the bonus levels feature filmed and/or streamed humiliation)
- Degrees of Lewdity (has a few encounters where bystanders will film the pc being assaulted)