*claps slowly*
Great job, guys. You have managed to get the server's CPU usage to 30% by spamming the shoutbox. I don't know how you did it, but I think that I pretty much have an idea since I see more than 600 shouts in the archive even though I told you repeatedly not to spam the shoutbox.
IRC chat exists FOR A REASON. I have disabled the XML refresh feature for the shoutbox. If this incident happens again or if I notice that the shoutbox is being abused like that again, I will disable it completely.