PS: The WHOIS is not the right one. MONIKER is a Domain Privacy-Service do secure your personal data at Whois-Searches.
Correct. But Whois services are not anonymous. If you write them an email informing them of interest of filing a lawsuit against the owner, most of the times they hand out the ownership information. I have done it many times successfully. Its hidden, but not anonymous by any means.
That's useful to known.
Nothing like this has ever gone to court in my knowledge.
Not that I'm a lawyer.