Substack faces a crisis after Casey Newton’s decision to leave over Nazi content

Substack, the newsletter and blogging platform that got so much attention a few years ago, is in a world of trouble. Casey Newton is taking his Platformer newsletter about social media and tech to a nonprofit, open-source self-publishing service called Ghost after he says his efforts to persuade Substack to pull pro-Nazi content failed to result in a meaningful change of policy. The controversy has been building since November, when Jonathan M. Katz wrote a piece for The Atlantic headlined “Substack Has a Nazi Problem.”

Of course, this is a crisis of Substack’s own making, and it could resolve it quickly if its executives choose to do so. But an obstinate refusal to deviate from what they see as their commitment to free speech has so far led them to do nothing — or at least not enough to keep a highly regarded publication like Platformer from leaving. In a December post that has been widely criticized and ridiculed on Substack Notes, co-founder Hamish McKenzie wrote in part:

I just want to make it clear that we don’t like Nazis either — we wish no-one held those views. But some people do hold those and other extreme views. Given that, we don’t think that censorship (including through demonetizing publications) makes the problem go away — in fact, it makes it worse.

We believe that supporting individual rights and civil liberties while subjecting ideas to open discourse is the best way to strip bad ideas of their power.

The problem, as I wrote for GBH News three years ago, is that Substack has two separate businesses. One is a solid contribution to the tech community: great software that makes it easy to self-publish and solicit payments from your audience. The other is to establish itself as a major force in the publishing world, paying celebrities like Newton (he says Substack provided him with health-insurance subsidies and legal assistance) and promoting their content. Now problems with the second business are threatening to overwhelm the first.

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The internet itself can be a pretty terrible place, filled with terrorists, pedophiles and, yes, Nazis. But the net is also neutral. Substack, like Facebook, Twitter/X, Threads and most other platforms, is anything but, promoting certain types of content for eyeballs, clicks and profit. Substack is not just hosting Nazis, it is arguably pushing their content in front of readers and making money from it. Newton wrote:

Substack’s aspirations now go far beyond web hosting. It touts the value of its network of publications as a primary reason to use its product, and has built several tools to promote that network. It encourages writers to recommend other Substack publications. It sends out a weekly digest of publications for readers to consider subscribing to.

Substack has made itself a congenial home for writers once associated with the left who’ve since moved right, such as Glenn Greenwald and Matt Taibbi. It will be interesting to see if they say something. Perhaps we’ll hear from Bari Weiss, a heterodox conservative who occasionally shows some backbone and who publishes a site called The Free Press on Substack.

The writer I’ll be watching most closely, though, is Heather Cox Richardson, a Boston College historian who is perhaps Substack’s biggest star. She has to be thinking about moving her “Letters from an American” to another platform, but I haven’t seen anything from her so far. If she would like to ghost Substack and move to Ghost, though, I’m sure Casey Newton would lend a hand.

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