Journalists need to be able to go after stories like this because otherwise our society will be much worse. They have editors. They have review boards. We're not talking about 4chan or reddit lynch mobs here.
Maybe he is the wrong guy. How is he going to prove he didn't invent Bitcoin? Especially if he has done classified work. He clearly doesn't want attention. He couldn't have made that more clear. And he still has a right to a private life. I don't agree with your suggestion that creators don't have rights.
I am not suggesting to stop journalists investigating who people are. But this is clearly someone who does not want attention. This could easily turn into a 4chan or reddit lynch mob. You only need a few Mtgox victims who want to enact revenge. Or criminals hoping of forcing him to pay hundreds of millions in blackmail. To a possibly innocent person.
To be clear, this story could have been done without printing his whole address, car number plate, unblurred pictures of himself and his family etc.