Reading articles just from keyboard by pressing N is hard since the next article can either be
- on top of page (multiple unread (long) articles)
- in some random position (end of loaded articles, won’t scroll beyond end)
- in the end (last article before loading new)
and generally when reading through multiple (short) articles the reading position jumps between each of these. Google Reader always kept the current article in the top no matter what.
(+ articles page get loads a lot when it fetches more articles or switches to another feed)