Well I've just shown you that Wikipedia *is* a very good shocksite. A concrete example: fred1245 makes a userpage and pops the clitoris picture, enlarged to fill the browser page, into the page, saves that and then blanks it. Then he posts the innocent-looking Wikipedia URL http://en.wikipedia.org/w/index.php?title=User:Fred1245&oldid=12302327 on the Rapture Ready forum.
At that is a bad thing how? If I wanted to cause trouble at RR I would post some stats showing that christians in the US are in the majority or something. Anyway alturnativly he just rehosts the goatse and links to that (although linking to the skeptic's bible would probably result in a bigger fuss).
The picture in question is a still from a PG13 movie, placed on an article about that movie. If people go to that article, presumably they expect to see stills from the movie. If they don't, there's nothing we can do to help them.
And how am I ment to know that titanic is PG13 (a rating that doesn't even exist in my country)?