And I can't help but feel like Anthony Michael Hall.
I think there are a couple kind of posts that should be chopped off first.
1. Repeat Posts --stuff that's covered multiple times 2. Quote / List heavy posts w/out much dicsussions --what's the point? 3. TV Show Season Posts --i can't imagine too much rereading comes from a lot of them. 4. Impotent Reply-wise --obviously, they offer little dicussion. 5. Prep Time --i think there are a number of great comic posts, unfortunately they're the exception
Basically, as Frank said, archived posts should offer insightful discussion or something else that makes rereading them worthwile (jokes, information, etc.).
There are others that don't fit in those five categories, but we can get to them later.
Since I'm in a cutting-type mood, let me at least offer some of mine up for execution.