Yes, I do snapshots, so in that respect I am a snapper. One of my favorite images (unfortunately captured electronically so I can't post it here) is a snap I took at Big Spring near Van Buren, Missouri. The trees are green on the hillside, you see the water boiling out of Big Spring, then at the bottom of the frame is an empty park bench. After getting back from vacation I thought it was not a very good picture but went ahead and posted it online. My sister said she liked the way it was framed and the park bench at the bottom of the frame was a nice touch.
A lot of pictures I took back in the 80's and 90's I originally thought were snapshots, but now that I go back and look at them, I've realized that some of them are more than just a quick snap.
So I would argue that whether something is a snapshot or if it is art is in the eye of the beholder.