Improve focus retention on single expanded article in List view to allow keyboard shortcuts to work function against focused article.
Generally speaking the UI focus seems to be easily lost after expanding a single article in list view if any subsequent clicks or scrolling are done (while the expanded article continues to remain open). Subsequent attempted keyboard shortcut actions either cease functioning or are actioned against an apparently random (or top of list) article.
The Old Reader considers the topmost article as "selected" or "focused". Please vote up this  suggestion instead of creating new one :)