Normally you will include your photos in the search results. But there could be some instances when you don't want to include certain photos in search results:
• One example would be if you added a hidden gallery of personal photos for family/friends. You probably wouldn't want those photos showing up in search results.
• Another example could be pictures that you are adding to blog posts like trip reports - perhaps pictures of people you are with or things you are doing, which you don't necessarily want to display in your photo search results out of context of the blog post.