LWN.net has the info: "The Kernel Janitor's Project grew out of our search for things to help in
the development of the Linux kernel, and learning from other patches
submitted by more experienced people, we saw that some of these patches
indicated error patterns that could exist in other parts of the kernel, we
looked and ... yes, we discovered that some parts of the kernel suffered
from the same problems and in the process we found code bitrotting ..."
March 27, 2001