For the last day or so when I go to the forum spam report page, there is an entry that's been flagged as spam in there. It seems that entry has already been deleted as when I attempt to visit it, it doesn't exist however it still appears in the spam report.
This happens every so often when a thread/post has been deleted within a short period of time (meaning ~30 minutes or less, if I remember correctly). I run into this when one of my co-mods has deleted something within a certain time frame and the system has not updated yet. I check my spam page, see the spammed entry, go there and it's gone!
Actually, just happened a bit ago. Seems that I had a spam in North America but when I got there - no spam. I checked the "who's online" link and saw Peter was hanging out. I took for granted he deleted the post.
I may be wrong... But, that's been my interpretation of the process.