The problem is that you don't understand how domain parking works. If you want to just own a domain but don't want it to go anywhere yet, you need to make records for that. "Domain parking" is the shady practice of putting up a "palceholder" page filled with ads.
Also...you don't know what "NXDOMAIN" is / means. Here are the RFCs:
" "NXDOMAIN" - an alternate expression for the "Name Error" RCODE as
described in [RFC1035 Section 4.1.1] and the two terms are used
interchangeably in this document."
"RCODE Response code - this 4 bit field is set as part of
responses. The values have the following
0 No error condition
1 Format error - The name server was
unable to interpret the query.
2 Server failure - The name server was
unable to process this query due to a
problem with the name server.
3 Name Error - Meaningful only for
responses from an authoritative name
server, this code signifies that the
domain name referenced in the query does
Name.com provides a FREE nameserver service which happens to have some strings attached. If you don't use their FREE DNS hosting service, those strings are NOT attached. I have been using name.com for years and have never had any problems. They don't do the same BS that places like Network Solutions do where they monitor what domains people are searching for an increase the prices based on that.
Seriously, learn what you're talking about before bashing a company publicly as much as this. I'm sure that a quick call or e-mail (also, who sends an e-mail requesting that a company call them? Protip: people in tech support HATE that...just ask your question in the e-mail) with a properly-worded question like "Yo, why does my domain name NOT return an 'nxdomain' code when I query your nameserver?" would have resulted in a clear and concise answer from them.
Is it BS that ads are put on parked domains? Sure, but then again, YOU DON'T HAVE TO PARK A DOMAIN.
"at a non-existent subdomain of Typewire's site"
Surely a non-existent subdomain should return a Name Error?
Unless you explicitly asked for a wildcard subdomain (which I realize the T&Cs _say_ you did, even though you never intended too), then I'd expect ww.realdomain.com and qqq.realdomain.com to return NXDOMAIN.
(and I agree with the post, adding a wildcard domain and putting ads on the parked pages is nasty, insisting it's a core part of your business model when called on it is evil, trying to then claim I'm somehow responsible for the ad content on this pages is beyond stupid! I'd certainly never use a registrar that chose to do that to me.)
adsfkjhasfasdf.dustingetz.com <--- name.com content
A record * points to 18.104.22.168