An exterior view of Twitter headquarters in San Francisco, California, US, Feb. 27, 2023. John G. Mabanglo/EPA-EFE/File WASHINGTON — When the iconic US diaper company Huggies was swamped with false pedophilia allegations last month, the conspiracy was traced to a once-banned influencer reinstated to Twitter by Elon Musk. The Tesla tycoon bitterly denies that misinformation has surged since his turbulent $44 billion acquisition of the messaging platform, but experts say content moderation has been gutted after mass layoffs, while a paid verification system has served to boost conspiracy theorists. Adding to the turmoil, the self-proclaimed free speech absolutist has restored...