This question has been vandalized by its author. He also vanished his Workplace account.
His account contained his real name, his company and location. His other SE sites' accounts still contains such PI.
One can assume he does not want his boss to see this, or his coworkers. I assume he can't delete the question because of the answers.
What should we do with this kind of behaviour ? Flag for moderator's attention ? Or just let go ?