Actually my comment above was addressed to Stifle who locked the article So I have no idea who you are talking to Bfigura in case you did not notice it so far I do not care about nonserious explanations as they are by definition invalid just like the many nonbinding regulations that Dicklyon has been trying to misrepresent as obligatory But when you actually go on and read them they usually say something like this is a recommendation only or this is a style issue that editors are free to choose and so on So spare me will you Thanks