Seems to me shared images are easer to use to communicate than typing a text and the bulk of them serve that function: replacing typing, or even being better than typing if "a picture is worth a thousand words."
In that case of uploaded images used to communicate in place of text, the effect is three trillion two hundred billion effective words uploaded every day (3.2 Billion x 1000).
As a photographer, again, so what! It is of no concern.
As a photographer is your life work really to take a picture of your breakfast to show your friends because you can't be bothered to use language to describe the meal?
Thoughts?