Wikipedia:Articles for deletion/Fictional applications of real materials
We don't keep articles around simply because they're |useful.  Beyond that, information about radioactivity and cancer should be in articles about radioactive materials, not in a list of fictional applications of real materials.  Even if we granted your utility argument your logic is broken --  someone who does not know that a property was fictional would not by default go looking for a list of fictional properties
— User:Blaxthos, 16:07, 4 October 2007 (UTC)
Stance: comment
Cited policy: WP:USEFUL (Wikipedia:Arguments to avoid in deletion discussions)