According to NPR, 17% of Americans believe in the core tenet of QAnon. Let's say that half of them, or 8% of Americans, had moved on from Facebook, as happened to MySpace when a more compelling social network emerged. As of 2020, Facebook had 258 million users in the U.S. and Canada, and its average revenue per user was $163.86. Let's pretend no one in Canada buys into QAnon, so we're talking 220 million American Facebook users. That means Facebook feared losing 17.6 million users if they banned QAnon content, which is a loss of roughly $2.9 billion of ad revenue in 2020.