From a March 27 NewsBusters post by Matthew Sheffield:
WaPo's Howie Kurtz solves what he calls a "minor mystery" of who is behind FireDavidGregory.com. Turns out it was one of those nefarious NewsBusters, Ian Schwartz. Howie shouldn't take too much pride in his findings, though, since anyone could've discovered it doing a whois of the domain.
Sheffield is wrong. A WhoIs search for the owner of FireDavidGregory.com reveals it to be registered under a company called Domains by Proxy, a company whose purpose is to obscure the owners of domain names. Schwartz's name is nowhere to be found in the WhoIs listing. That's why Kurtz called it a "minor mystery," Matt.