The world’s internet regulators are no longer playing around. Two days after France indicted Telegram CEO Pavel Durov on a range of charges, Brazil on Friday ordered the suspension of Elon Musk’s X after it defied a mandate to designate a legal representative in the country. While the details differ in important ways, both cases involve democratic governments losing patience with cyberlibertarian tech moguls who thumbed their noses at authorities perhaps one too many times. The crackdowns, which come months after the United States passed a law that could lead to the banning of TikTok, herald the end of an...