Jace, i want to share the pictures and videos with the members and therefore to recive comments, but i don't want that my pictures and videos will be rated.
The comments is necessary as the part of the sharing, as without comments, the sharing will be useless, but the rating is less important then the comments.
Even in Youtube, there are almost all of the options about keeping priavcy, including visibility of the videos and comments disabling.
There is no rating system in Youtube, currently. But even if they would returned the rating, they would also add an option to disable it, in the video preferences.
As you can see, because of the removing of the rating option, i much less active in this site, and almost don't upload pictures.