Why Is Big Tech Policing Speech? Because the Government Isn’t

ORIGINALLY PUBLISHED JANUARY 2021: In the months leading up to the November election, the social media platform Parler attracted millions of new users by promising something competitors, increasingly, did not: unfettered free speech. “If you can say it on the streets of New York,” promised the company’s chief executive, John Matze, in a June CNBC interview, “you can say it on Parler.”

The giants of social media — Facebook, Twitter, YouTube, Instagram — had more stringent rules. And while they still amplified huge amounts of far-right content, they had started...