Well first to clear something up ICANN merely forwards these complaints to registrars to investigate.
ICANN does not do anything to delete the domain name or anything like that.
Nor do they have any way to do that (other than getting the registrar of the name to delete it which they aren't going to do). There is no button they can press. In theory the registry above the registrar (Verisign for .com .net, PIR for .org, Afilias for .info) could but they won't either.
A registrar will simply attempt to contact the owner and depending on how that goes will decide how to proceed with something like this. For practical and legal reasons registrars are not going to delete a domain name and invite a host of problems just because of an incorrect email address and because a form was submitted to ICANN. (There are other things they might do but that's not the practical solution to the problem).
The above is based on my involvement with a registrar for many many years (longer than most registrars have been around) on what you could call a "senior" level.
So without knowing the specific domain it would be important to know whether the domain was actually deleted (at which point it becomes a free for all in the drop) or something else happened to it (like an inside job at the registrar). By the way Network Solutions was famous for this happening. I don't know if it happens anymore (there) or when it stopped happening (there) but many people got hold of domains by having an inside employee at NSI work with them.
If you gave me the domain name I could check a few things and possibly either rule in or rule out the possibilities.
But once again ICANN would only forward the report to the registrar and they decide how it will be handled etc.
The trademark stuff means nothing in the scheme of this!
Proving a trademark and gaining ownership is a completely different process. If you were to call us and try to get a domain that way it wouldn't (and shouldn't) work.
Related things happen quite frequently. Specifically some web guy registers a domain name for a client and then the client tries to get hold of the domain. We don't (and can't) get in the middle of those things. I suspect other registrar operate in a close fashion.
You know what? I have no obligation to keep an open line of communication to anyone. I mainly have a domain so I don't have to memorize the IP address of my servers that mainly I use, and so I never have to change my email address. My registrar can get ahold of me for billing and technical purposes, but otherwise I don't want to see spam about domain name SEO BS. I may keep the requisite RFC recommended email aliases open for technical contact purposes, but I have no responsibility to respond to emails sent to those addresses, and I fully reserve the right to drop all traffic from IPs that send spam to those email addresses.
I'm pretty sure keeping your WHOIS info up to date is an obligation imposed by your registrar's TOS (unless you pay their stupid privacy fee). Not saying you aren't right, I just think if they wanted to yank your domain for not complying they're technically in the right - I would recommend using a valid email to avoid getting screwed.
It isn't possible to tell the difference between the contact details being incorrect, and them being correct but the recipient choosing not to answer. But that is why the registrar gets to verify the details are indeed correct, and not the reporter. The registrars are allowed to take action to prevent spam and similar actions against usage of the contact information.
So what should happen is that apparently uncontactable domain owners are reported, and the registrars catch the slimy peddlers.
On a side note, does anyone know if Kirsty and Robert still work at ycombinator? No reason.
edit: Ooh, it looks like YC's address info is incorrect on one of their whois entries. Are they at 32 or 320 Pioneer Way? And those phone numbers are completely wrong too.
My registrar "accidentally" put my real mobile number from my billing info (instead of my Skype number) in my WHOIS record once and I had to get another number it was so bad.
Six months later I noticed that ownership had changed and much to the chagrin of our domain manager and legal representative who was supposed to handle the whole thing; the domain was in the hands of another company who had legal trademark right in another industry.
Not sure if corollary is causal here, but it 'FELT' like ICANN worked for a brief second, there.
I've been approached by someone who wanted a domain I have, but I usually just don't respond, lest my words be seen as "bad faith".
I've reported domains that had obviously fake contact info on them, like fake phone numbers or fake addresses. If you don't want to use real info use a proxy service.
"Someone pointed out to me that I could game the system to get my hands on a domain I may make money reselling. I have mixed feelings because I'm a good person but still I like money. In the end I don't think I will do it. Where is my cookie?"
IMHO