1) no way to tell which are new posts - I cant believe it didnt occur to you to color old or unread posts differently! Idea - change the color of every post title as it ages, from Yellow to black. (or light gray to black).
2) poorly organized. I had to reply individually because I wasnt sure they would see it. See here
http://news.ycombinator.com/comments?id=1890
3) what is showdead?
4) there seems to be a clamor of links to articles.