Okay, I remember about 3 or 4 years ago, there used to be a difference between the Yellow-named people and the Grey named people. We all know Admins are Orange, and everybody in general has been yellow, but lately there have been a number of grey names popping up on the bottom of the page. What does that mean?

And I know KMI is grey, but that's Harris's fault. but I don't know why he's not just yellow like everybody else.

It's really not a problem so much as just something that strikes my curiosity.

The ones that are registered but didn't click on that authentication link in their email?

When they're grey I think that's because they have never posted... But why is KMI grey? (I say grey, but they're pretty much white to me)

I'm with Nienna on this one. It's probably users who registered but never authenticated.