What a great example of the importance of privacy settings! Although your students might see nothing wrong with this, what they think they're sharing with friends on social media can easily be found by others. Most of my students would ask why not get as many views for your photos as you can? I imagine adults would see this differently.
This would be a good discussion starter. Be prepared for your computers to be taken over, though, as students immediately head there to look for their cats. And yes, I did find cats belonging to someone I know when I looked at this map!