When you click on a profile picture, why can't it be seen larger?

I want to see DrBill’s giant cat or maybe Daloon’s tattooed ass up close. Ok, maybe not the ass. How can I paint a mural of AstroChuck if I can’t really see his face? I think Augustlan’s avatar may be a capital letter A, but who knows? A lot of people have cute or funny avatars but they are too small to fully enjoy.