Washington Post: Mysterious bylines appeared on a USA Today site. Did these writers exist?

Washington Post: Mysterious bylines appeared on a USA Today site. Did these writers exist?. “Staffers at Reviewed, a USA Today-owned website devoted to shopping recommendations, were about to end their workday Friday when one of them noticed something strange: Articles were publishing on the site by writers none of them had ever heard of — and using suspiciously similar language.”