No! However, you can have yourself deleted/be deleted, then there will still be the existing posts with a placeholder profile. You yourself will register again at some point.
The last half-sentence means that vicky pedia had the profile public on the first day of her registration and had entered civil engineer there. After a few initial posts, there was then an inquiry and suddenly the profile was no longer public and vicky pedia mentioned dentist as the profession in a post.