Rowling's identity was uncovered when a family friend of her solicitors tweeted it out.

> The Harry Potter author released her first Robert Galbraith novel, The Cuckoo’s Calling, in April 2013 under the guise of a very British sounding man who was said to have previously served in the army. But her nom-de-plume was uncovered three months later after an indiscreet tweet divulging the true identity of Galbraith was sent by “@JudeCallegari”, a family friend of Christopher Gossage, a partner at Rowling’s solicitors.

Some people would suggest that the book was doing poorly, and needed a sales bump.

Perhaps we should use NLP to change the writing style but maintain the core idea. :)

That's true if you're an established author and create a new itentity. If you've never published fiction though, there'd be no corpus to train on. What the article is saying is is that it's difficult for new artists to establish themselves, but in this case, I think psuedoanonymity is a good idea if you have any topics or ideas that you worry would cause a backlash.