Google = G2
Top 13 User Agents by number of posts 1: G2........................................................ : 70 (51%)
There are 19 posts in that thread, three of which are outside of the time frame the script counted.
Earliest article: Sun Sep 28 04:00:04 2008 Latest article: Sun Oct 5 01:05:16 2008
The time on my news server, my local time, currently is EDT.
I just loaded 150 posts, 13 more than the script counted over the past 7 days, and there were 14 posts to that thread.
And I made a mistake when setting up the cron job to generate the stats. Yesterday was Saturday, not Sunday. D'OH! :)