Art pages do have a purpose: artistic expression.
A lot of art sites say "go outside." Today I went outside and explored in some woods. How does a graph tree get on the internet? By logging in, give me the pictures that will make me happy.
"Technical skill migth be an helpful component in making art, but it's certainly not required."
S. Godin, Linchpin
If anything can be art then a comical ink blot made by a shrimp is art.
Ink your living shrimps, put the shrimps onto a piece of drawing paper and see tour crustacean artists make abstract expressionist artworks.