Zuckerberg insisted that the policy is based on its commitment to free speech, not concerns about its bottom line. Democratic presidential candidates and others criticised Facebook this month for declining to remove a Trump campaign ad that contained falsehoods.
"In a democracy, I don't think it's right for private companies to censor politicians or the news," he said.
"This isn't about free expression," Twitter's Dorsey tweeted. "This is about paying for reach. And paying to increase the reach of political speech has significant ramifications that today's democratic infrastructure may not be prepared to handle. It's worth stepping back in order to address."
The past few months have been among the rockiest in Facebook's 15-year history. In July, the US Federal Trade Commission slapped Facebook with a historic US$5b fine for repeated privacy violations. The agency levied a fine after a 16-month investigation stemming from the Cambridge Analytica scandal, in which a political consultancy with ties to the Trump presidential campaign improperly accessed the data of tens of millions of Facebook users. The company's plan to disrupt the financial system with a not-yet-available cryptocurrency called Libra has received an icy reception from regulators and triggered a wave of accounts falsely purporting to sell the currency.
But advertisers care most about being able to target large numbers of people with extremely precise tools, said Debra Aho Williamson, an analyst at research firm eMarketer. Despite Facebook's setbacks and scandals, she says, it's clear that advertisers still believe the platform delivers on those promises.
"Facebook is a company that is able to execute on the metrics that matter even though there are many, many major challenges in other areas," she said.
The company's stock price has been volatile over the past year, reaching a low of US$123.02 a share in December and a high of US$208.66 in July. On Wednesday, Facebook's stock price was up 4.5 per cent in after-hours trading on the earnings.
"There's more external pressure (on Facebook) because there's a view that the walls are closing in from a regulatory perspective, but investors only care about results," said Daniel Ives, a managing director and analyst at Wedbush Securities. "Investors are laser-focused on its strategy going forward, on balancing advertising growth with privacy issues, which continues to be a tightrope that Zuckerberg is trying to walk."
Chief Financial Officer Dave Wehner said increased emphasis on privacy from regulators, operating systems and the company itself may make it more difficult for advertisers to target their audience and could slow Facebook's revenue growth. For example, Apple's latest operating system iOS 13 reminds users which apps are tracking them via their location data.
It's been a particularly troubling month for Facebook, though analysts seemed confident Tuesday that advertisers would stick with the platform in the wake of one setback after another. Facebook was dealt a blow by the European Union's highest court, which determined that the social media company can be ordered to remove content worldwide.
Facebook also said in October that Russian-backed accounts are sowing political discord on the platform in the run-up to the 2020 US presidential election.
Congress criticised nearly every aspect of the company's business at a hearing held a few days later. Facebook also learned this month that forty-six attorneys general have joined an antitrust investigation of the company led by New York. The state probe comes in addition to the federal government's review of the company and its past acquisitions, WhatsApp and Instagram.
Asked about the antitrust investigation and probe, Zuckerberg said the success of platforms like Snapchat shows that the industry remains competitive. He also said he expects regulators to focus primarily on Facebook's 2012 acquisition of Instagram, which he said Facebook saw as both a competitor and a business that would be "complementary" to its own.
Yet Facebook remains the largest social media site in the world and continues to reinvent itself in a rapidly evolving tech landscape. The company says it is increasingly focused on privacy and plans to add end-to-end encryption to all of its messaging products, a move that has attracted positive attention from privacy experts but also raised the ire of regulators. Facebook has also begun compensating some news outlets for the stories it has historically republished for free on its News Tab.
As has been the case in quarters past, the company's user growth is concentrated primarily in areas outside the US, Canada and Europe, with a strong increase in the Asia-Pacific region.
