I have actually seen someone take a picture of their lunch with their phone in order to post the picture on FaceBook.
I only did that once! Cuz there was a story to go with it.
Also, my beloved grandson is currently in Basic Military Training at Lackland AFB. The Air Force has a FB page where they keep families informed as to visiting procedures for graduation, and they post pictures of the training Flights so you can see your Airman. So much more info than when my daughter was in BMT at Lackland.