Root server cannot be a forwarder?

[Stephane Bortzmeyer]

On Fri, Oct 20, 2006 at 07:24:48PM -0700,
 April <xiaoxia2005a at yahoo.com> wrote 
 a message of 18 lines which said:

> Ever built a DNS server and set up your own namespace at home, or
> anywhere?  you can use either BIND, or Windows DNS, or some other
> DNS implementation.  Then you can set a root, and top level domains
> like fruit. and vegetable. and then second level domains,
> apple.fruit., orange.fruit., eggplant.vegetable., tomato.vegetable.,
> etc.
 
Every first-year student in computer science did that, on its home
Ubuntu PC :-) And Barry is right, he can call his PC a "root name
server" after that. But, besides learning DNS or distracting the
student, what's the point of it?