Not true.
In fact the careless way that these images are categorized and linked to inappropriate articles is one of my main concerns.
Often sexually explicit or sexually titillating images placed in very mundane categories like electric fan, couch, or coca cola.
So when these topic are linked to Commons the sexual content appears without the person expecting it.
My attempts to fix this on a case by case basis are often reverted.
When I discuss it with the some of the people reverting, I'm told that I denying people the ability to find these images...censorship.
Sydney
You might try elaborating and refining the proposed policy at Wikipedia:Sexual content
Fred