If you are a facebook user who has many friends on facebook, you can remember that your news feed page is full of pictures.
So, my junior researcher wondered if it is the tasit rule to upload pictures on facebook.
Especially, most of the pictures show a group of people.
In my opinion, those who usually upload pictures must want to be proud of how many friends they have.
And a more serious problem lies on this. Lately, some companies began to access applicants by evaluating their activities on facebook. In this case, frequent uploading of pictures is thought to be a measure for getting priority in job-hunting.
My junior researcher pointed out a piece of social problems.