Since they seem to only show you this notice once instead of giving you a reminder the next time you go to change out the cover photo on facebook, I thought I would post the screenshot here as a reminder:
Do you think that maybe they are trying to get people to advertise? 🙂
I also hope they are a bit loose on this or at least give warnings. What about a copywriter who wants to use a blown up bit of text artistically or a graphic designer who is going to include sample portfolio pieces (which is what I have done.) It only seems fair since photographers can basically show, guess what, their photographs.