If nothing else, Twitter CEO Jack Dorsey proved himself to be a master of timing when he announced last week that his social network will ban all political ads.

Anger was still raging over Mark Zuckerberg’s recent statement that Facebook would not attempt to fact-check political advertising, thus opening the door to a flood of falsehoods. Taking direct aim at Zuckerberg, Dorsey tweeted: “It‘s not credible for us to say: ‘We’re working hard to stop people from gaming our systems to spread misleading info, buuut if someone pays us to target and force people to see their political ad…well...they can say whatever they want!’”

Not surprisingly, Twitter’s ad ban won widespread praise.

“This is a good call,” tweeted U.S. Rep. Alexandria Ocasio-Cortez, D-N.Y., who had only recently tormented Zuckerberg at a congressional hearing. “Technology — and social media especially — has a powerful responsibility in preserving the integrity of our elections. Not allowing for paid disinformation is one of the most basic, ethical decisions a company can make.”

Added Hillary Clinton: “This is the right thing to do for democracy in America and all over the world. What say you, @Facebook?”

Oh, but if only it were that simple. Advertising on social media is a cheap and effective way for underfunded candidates seeking less prominent offices to reach prospective voters. No, it’s not good for democracy if we are overwhelmed with lies. But, with some controls in place, Facebook and Twitter can be crucial for political candidates who can’t afford television ads. To get rid of all political advertising would be to favor incumbents over outsiders and longshots.

“Twitter’s ban on political ads disadvantages challengers and political newcomers,” wrote University of Utah communications researcher Shannon C. MacGregor in The Guardian. “Digital ads are much cheaper than television ads, drawing in a wider scope of candidates, especially for down-ballot races.”

And let’s be clear: Facebook, not Twitter, is what really matters. Journalists pay a lot of attention to Twitter because other journalists use it — as do politicians, bots and sociopaths. Facebook, with more than 2 billion active users around the world, is exponentially larger and much richer. For instance, the 2020 presidential candidates so far have spent an estimated $46 million on political ads on Facebook, compared to less than $3 million spent by all candidates on Twitter ads during the 2018 midterms.

But is political advertising on Facebook worth saving given the falsehoods, the attempts to deceive, that go way beyond anything you’re likely to see on TV?

In fact, there are some common-sense steps that might help fix Facebook ads.

Writing in The Boston Globe, technology journalist Josh Bernoff suggested that Facebook ban all targeting for political ads except for geography. In other words, candidates for statewide office ought to be able to target their ads so they’re not paying to reach Facebook users in other states. But they shouldn’t be able to target certain slices of the electorate, like liberals or conservatives, homeowners or renters, white people or African Americans (or “Jew haters,” as ProPublica discovered was possible in a nauseating exposé a couple of years ago.)

Bernoff also suggested that politicians be required to provide documentation to back up the facts in their ads. It’s a good idea, though it may prove impractical.

“Facebook is incapable of vetting political ads effectively and consistently at the global scale. And political ads are essential to maintaining the company’s presence in countries around the world,” wrote Siva Vaidhyanathan, author of “Antisocial Media: How Facebook Disconnects Us and Undermines Democracy,” in The New York Times.

But we may not have to go that far. The reason ads spreading disinformation are so effective on Facebook is that they fly under the radar, seen by tiny slices of the electorate and thus evading broader scrutiny. In an op-ed piece in The Washington Post, Ellen L. Weintraub, chair of the Federal Election Commission, argued that the elimination of microtargeting could result in more truthful, less toxic advertising.

“Ads that are more widely available will contribute to the robust and wide-open debate that is central to our First Amendment values,” Weintraub wrote. “Political advertisers will have greater incentives to be truthful in ads when they can more easily and publicly be called to account for them.”

Calling for political ads to be banned on Facebook is futile. We live our lives on the internet these days, and Facebook has become (God help us) our most important distributor of news and information.

As Supreme Court Justice Louis Brandeis once wrote, “If there be time to expose through discussion the falsehood and fallacies, to avert the evil by the process of education, the remedy to be applied is more speech, not enforced silence.”

Nonprofit news update

Earlier this week The Salt Lake Tribune reported that the IRS had approved its application to become a nonprofit organization, making it the first daily newspaper to take that step. Unlike The Philadelphia Inquirer and the Tampa Bay Times, for-profit newspapers owned by nonprofit foundations, the Tribune will be fully nonprofit, making it eligible for tax-deductible donations.

Nonprofit news isn’t exactly a novelty. Public media organizations like PBS, NPR and, yes, WGBH are nonprofit organizations. So are a number of pioneering community websites such as the New Haven Independent and Voice of San Diego. And if the Tribune succeeds, it could pave the way for other legacy newspapers.

Last May I wrote about what nonprofit status in Salt Lake could mean for the struggling newspaper business. This week’s announcement is a huge step forward.

WGBH News contributor Dan Kennedy’s blog, Media Nation, is online at dankennedy.net.