Glassdoor heavily cooperates with companies to take down reviews that are too negative or specific.
Also, anyone can post reviews, which the companies take advantage of. We had an HR person at my previous company whose job responsibilities included posting one positive (4-5 star) review of the company per week on Glassdoor and similar sites. As you can imagine, doing so is a much cheaper way of dealing with negative reviews than suing the websites.
Also, anyone can post reviews, which the companies take advantage of. We had an HR person at my previous company whose job responsibilities included posting one positive (4-5 star) review of the company per week on Glassdoor and similar sites. As you can imagine, doing so is a much cheaper way of dealing with negative reviews than suing the websites.