PR 5 lessons from America’s most hated companies PR and marketing pros can avoid the hatred of the public by learning from the mistakes of companies that already earned it. By Beki Winchel@bekiwekiJan. 21, 2015 SHARE To read the full story, log in. Become a Ragan Insider member to read this article and all other archived content. Sign up today Already a member? Log in here. Learn more about Ragan Insider.