Are you really sure that a floor can't also be a ceiling?
David, it's not technically a feature. It's data. The feature is being able to display the data in a meaningful manner. Support for new image formats would be a feature. Support for displaying images where they previously were unable to be displayed would also be classified as a new feature. Simply displaying different documents, however, isn't.
Is adding a new language translation a feature? It's new, right? The support for using translations was already there, it's just new data to display is all. Would changing the release notes format be a new feature? No, we already have document viewers that can display these things. I can only imagine the sheer amount of firefox bug reports I would get every time someone created a new web site: "RFE: Please add support for viewing xyz.com." What if the GIMP developers had to deal with feature requests: "RFE: foo.jpg works but only with certain contrast settings."
Yes, there is a lot of new art coming through the pipeline. It is also clear you don't like it. Perhaps if you did, your opinion of the so-called "feature" would be more favorable. However, art is perhaps one of the most subjective areas known to man. While some think Monet and Picasso were genius, others (myself included) can not stand the works. Some people complained about the art in FC5; others loved it. Now when trying to change things for FC6, yet more complaints. But there is hope. Help create (or find people you know to help create) art for the project. Help test and report these issues. Don't make it seem as if the new artwork is being done in an attempt to sabotage the release, though. The Fedora Artwork project is important because it is another way for people who might not be able to contribute otherwise (due to lack of desire/ability to code, for example) an avenue for contributing. We should be promoting it, not attempting to stifle it.
/me goes to get some much needed sleep now....
Title quote: M.C. Escher.
