Apparently he was asking for the real life name/address of the person, when then also making the threat. Which to the Eve devs, made it more than just random screaming on the internet.
"My great-grandfather did not travel across four thousand miles of the Atlantic Ocean to see this nation overrun by immigrants. He did it because he killed a man back in Ireland. That's the rumor." -Stephen Colbert
That kind of reaction to betrayal should be expected. In Eve's harsh environment of total loss there really is nothing worse than losing everything to a supposed friend.
A wormhole corp I used to run with suffered a similar type of betrayal, one of the members got so angry he threw his desk chair through the window of his house out on to the lawn. The window was not open at the time.