https://www.eastbaytimes.com/2022/04/11/tesla-ceo-elon-musk-wont-join-twitters-board-after-all/ > SAN FRANCISCO — Twitter’s largest investor, billionaire Elon Musk, is reversing course and will no longer join the company’s board of directors less than a week after being awarded a seat. > Twitter CEO Parag Agrawal announced the news, which followed a weekend of Musk tweets suggesting changes to Twitter, including making the site ad-free. Nearly 90% of Twitter’s 2021 revenue came from ads.