Leo Babauta writes about being mindful when sharing photos:
"Why is this moment not enough, without the need to share? Do I just want to brag, or is there a good-hearted motivation there too? What am I so afraid of, that I can’t refrain from sharing?"
I'm all for showing your work when it comes to posting photos. I think it's the perfect way to teach and learn while teaching. However, when it comes to personal/family photos, it does seem that almost everything I see posted is an attempt to justify and brag about parts of our lives that need no justification and do not benefit from bragging.
These questions are a good start. It's not about what you do with the photos you've taken. It's about whether they need taking at all.