How Parler, a Chosen App of Trump Fans, Became a Test of Free Speech

From the start, John Matze had positioned Parler as a “free speech” social network where people could mostly say whatever they wanted. It was a bet that had recently paid off big as millions of President Trump’s supporters, fed up with what they deemed censorship on Facebook and Twitter, flocked to Parler instead. On the app, which had become a top download on Apple’s App Store, discussions over politics had ramped up. But so had conspiracy theories that falsely said the election had been stolen from Mr. Trump, with users urging aggressive demonstrations last week when Congress met to certify the election of President-elect Joseph R. Biden Jr. Those calls for violence soon came back to haunt Mr. Matze, 27, a software engineer from Las Vegas and Parler’s chief executive. By Saturday night, Apple and Google had removed Parler from their app stores and Amazon said it would no longer host the site on its computing services, saying it had not sufficiently policed posts that incited violence and crime. Early on Monday morning, just after midnight on the West Coast, Parler appeared to have gone offline.