In a sense, this is a special case of a meta-problem: trivia. The extent that Wikipedia articles should include trivia - and how this should be done - isn't properly defined.
-Matt (User:Morven)
I don't think that there can be a definite policy on trivia, seeing as what to include and what to omit seems very static. I was thinking one time about the logic of making a list along the lines of [[List of songs which explicitly refer to transportation by automobile]]. I quickly found that there were too many instances to remember. Besides, would a list like this serve any real purpose? Probably not.
--Merovingian