Andrew:
Your distinction is arbitrary. 
Why is a top level domain different from a second level domain in this
regard? 

>>> "Andrew McLaughlin" <[log in to unmask]> 04/03/07 8:41 PM >>>
content-specific label, and therefore bad (IMHO).  DNS registries
should always be agnostic to content.

My concern is to keep all DNS registries away from the business of
acting as a label for content;  it's fine with me if they serve as a