I do see all that social stuff, and ya it’s annoying. However, I like the fact that it’s quite difficult for the average (even more savvy) users to download photos without buying them. Sure, they could get a screen cap, but I don’t worry about my hi-res images: I tried to steal one of my own and all I got was a thumbnail.
It’s also neat that once I upload pictures, I can see right away if they’re noticed. I’ve put up a few that got no attention at all, so I removed them, then changed them to black and white, and they got votes. While I’m aware it is more of a popularity contest rather than photo skills, it DOES help me sort through my images to choose better.
As for the rating, it is what it is, and I’ll stay on as long as this is the safest way to display my photos.