Were you told you could opt out by submitting a certain post like below?
"In response to the new Facebook guidelines, I hereby declare that my copyright is attached to all of my personal details, illustrations, comics, paintings, professional photos and videos, etc (as a result of the Berner Convention)."
Personally this doesn't bother me since I know I am the product. Armed with that information you can make more informed decisions about what you are willing to share. So don't go running away, just keep it in mind the next time you share that picture and scroll past these posts from now on.