I think it would be idiot for them NOT to hide their identity.
An instructive story
We are speaking of a domain like firstname.xxx (where firstname is a rather common first name , and xx is a major european country )
I knew a guy, he was the IT manager for a company, they had the domain since years, selling stuff on it. (One of their major products was called "Firstname Service"). They are NOT domainers, they were selling their stuff but had bought the domain years back when it was available.
Then, a HUGE company from the same country launches a service called ... Firstname
We are speaking of one of the country's 10 largest companies with 11-digits revenues in Euro, rebranding one of their major products under that name, just to give the scale of the deal.
A few weeks AFTER this launch the guy gets called by the company's CEO that wants to negotiate the purchase of the domain.
The guy consults with his partners, and cosidering the size of the company they decide the price will be 100.000 Euros
He goes to the CEO, and after some chitchat he gets asked the price. At the very last moment (he described me the situation as "my head was spinning and I was hearing a humming sound in my ears) he decides to add a zero to the price and asks 1.000.000 Euros
The CEO accepts on the spot. Deal made
I heard this story directly form the seller, apart from the price all the rest is easily verifiable, the only unverifiable part is the price, which was otherwise undisclosed and would have made it the highest sale in that TLD.
The crazy excitement that this guy had telling me the story, weeks after it happened, make me think it's true.
Anyway, the large company dealt with the matter in a VERY idiot way. Had they been smarter, they could have bought the domain BEFORE the launch, with an intermediary, and saved almost a million Euros.
Mind you, if I had an 11-digits revenue I probably would have a different vision of the matter, and of the whole world...