Board Thread:News and Announcements/@comment-3361105-20130322231945/@comment-1038387-20130503113216

"... none of which have their Superman versions in the main Superman article or their Batman in the Batman article. Not a one."

Your point? It warrants a mention, it's just that nobody wrote it down (yet?).

"In the other direction, we have Walter West and Prime Earth and the characters from Justice League: The Nail Kal-El (The Nail)."

Walter West is... well, I'm not entirely sure of his origins. But note that the designation was given in 2009, well before we had any clear policy on the matter. Prime Earth is, by editiorial decree, a new universe/multiverse. The Nail is an Elseworld (much like a What If?).

The benefit is that it is, from a historical perspective, ACCURATE.