[Joe Matt]

Looks to be just a back up clause that will be pulled out incase any more threads come up that aren't robotics related that cause a problem. There is no way Chit-Chat will be removed, but I imagine that if someone posted another "which religion and you" thread and had it removed, they can point to this rule, which simply means, CD can do what it wants with any thread not pertaining to robotics specifically.

Of course, this is how I view it, the CD "gods" might want to elaborate more.