Unless, of course, you're using the 'Shifty' color scheme (which I believe is still standard?). Then Blue means boys, Pink means girls, Yellow is for the sexless, Gold is for Admins, and Green is for Moderators.
And yes, WOTD is the Wiener of the Day.
"I'm going to go now and demand beer money from my representative. We simply must deal with the problem of my sobriety." - PalpatineW
It might be misreading your "null" as a negative number - epoch time is measured as the number of seconds from 1.1.1970 IIRC, and a lot of time values are stored in the database in epoch time values. I'd check the code but I'M ON VACATION!