The importance of journaling...

I don't understand the importance of journaling: Shouldn't the pictures tell the story? And if they don't, aren't the pictures wrong? If they like journaling so much, shouldn't they just do that in a diary? And add pictures & stuff to that diary if the story needs visualisation?
So when they do need to add text to the pictures, make it short & clear: like below... So everyone can understand!!!



BubbaH!