The above is ancient, but it would be pretty nice to associate specific deck with specific game in various Games listings.
It's also convenient for when you want to look at something that happened in a current game, but you only remember the deck you used that game, and not who you played it with.
(Sadly, I'm not actually sure we have room for another column on said lists, but I don't really know what screen size most people use anyway; I know the format is already completely huge on some [apparently being non-resizing, although maybe never intended to be].)