Another aspect to the average is probably timezone, as this post for example which is being written after what would be the prime time hours when most of the di

Another aspect to the average is probably timezone, as this post for example which is being written after what would be the prime time hours when most of the discussion has already occurred. I'm sure over time this would effect average. I don't so much think average is important, possibly a derivative of it would be average amount of posts to receive down votes. We don't want to discourage people replying to threads that are falling off the front page, even if the only person who sees the post is the person that the post was in reply to, that still sounds like a net gain if it was useful or made a good point.