I looked in mine a few days ago for the same reason. I had a imge in there that had 45 views a year ago and it was old from 2004. I was going to delete it last year but did not. When i looked a few days ago it had 105 veiws. LoL for two years just 45 veiws and then in a year it had 70 more veiws. I say people like to look in the old stuff of the gallery to see where they came from and see how much they grown. Plus to see what changes they made to be better or what way he doing art now and before too. Lot of things people look at the past. I leeave the good the bad and the ugle in hopeing to show what not to post on the bad and ugles. 
I left it alone. 
It like looking at a history book of a artist. to see they diff styles as they grow in art. You can see that in the art books of artist as the history people write about them.

what you see is not what you know; it in your face