It's always been a thing to upload the same images to character/etc and artist, and it used to be that default images were set automatically if there weren't any so there's plenty of leftovers from that feature. Imo artwork by the artist is better than nothing. Speaking of that, why did they remove the ability to see where images are uploaded to? it was a great way to find out who the artists were from the character galleries.
Anyway i get more upset when people change the default cv unknown pic for the ??? one. What is the purpose of that?