Change to .com/.net behavior

A couple things come to mind --

1) Does this increase the RAM needed on a caching resolver? I.e. does it take
more RAM to cache the 15-minute positive reply, than an NXDOMAIN negative

2) In the "bestpractices.pdf" file, it states the following:
  "A response server should be configured to return an indication
   that the provided services were reached as a result of wildcard
   processing when the server returns a response to connection
   requests sent by end user applications."

Can Verisign explain how the following transaction is consistent with the
above guideline (where is the indication of wildcard processing):

$ telnet 25
Connected to
Escape character is '^]'.
220 snubby4-wceast Snubby Mail Rejector Daemon v1.3 ready
250 OK
mail from:
250 OK
rcpt to:
550 User domain does not exist.

Oh well -- here's to looking out for the BIND patch...

- Dani