I don't know if the italicized time of the post at the beginning of each blurb is useful, it feels like cruft when I am looking for information (I just skip over that piece). It also loses meaning lower down in the list (6:45PM 3 days ago? Do I care?)
Also: Have you played with de-emphasizing the time box on the left of each post somehow? Like, make it use muted colors unless :hovered?
I'd kill for an RSS reader that worked like this, though.