I don't know if you've ever worked on Wikipedia, but in my experience, they get really, really pissed when you mention any kind of obfuscation of "objectionable" content. Of course, now that Godking Jimbo has gone an anti-porn crusade, the story might be different, but just look at the talk page on clitoris and you can see the rabidness with which they defend graphic depictions coming out of nowhere.
It's not that the content shouldn't be available or that a photograph of a clit isn't appropriate for the article, it's just that unsuspecting users may not want to be innocently clicking "Random Article" and end up with a picture of a vagina on their screen, you know? But the Wikipedia people don't know.