The throng of thousands that stormed the U.S. Capitol on Jan. 6 included devotees of QAnon, a conspiracy theory that got its start in the shadowy corners of the Internet. Since 2017, QAnon’s baseless beliefs have spread in an online environment with little to no guardrails to contain it. Since the riot, Twitter, for one, has purged 70,000 accounts. But users are flocking to new sites, such as Gab and Telegraph, which have amassed thousands of new users since the insurrection.