Come home from work, sweep shoutbox of old msg and read the new ones.
open the forums and volia !
No new posts are lit up.
Yet although there appear to be no "posts since my last visit' for example today, there are plenty of posts (manually) found with a post date of today !
At first I thought it might've been a slow day but now it has happened 2 or 3 times in the past week or two