Question about the ADDITIONAL SECTION

[Clenna Lumina]

I have a question. I am using ZoneEdit.com to slave some zones I have, 
and I noticed their servers never return the ADDITIONAL SECTION which 
should contain the A records for the NS servers that were returned in 
the AUTHORITY SECTION.

Naturally, my local master Bind server return that section, like a good 
DNS server.

I'm assuming they are using "minimal-responses: yes" in their 
named.conf.

So my question is, isn't it going against how DNS is supposed to work, 
in regards to authoritative lookups, to NOT return A records for the 
NS's listed in the AUTHORITY section?

To my knowledge, "minimal-responses: yes" should only be used for 
caching (resolving) servers only, right?

Thanks for any help clearing this up.

-- 
CL