Ask a chatbot for restaurants in Mexico City or how to get a mustard stain out of a shirt, and there is a good chance the answer began on Reddit. Every other platform spent a decade selling attention to advertisers; Katie Deighton's reporting is that Reddit became valuable to AI companies precisely because it did not, and that the money now arriving could undo that.
"And Reddit has proven to be a really important place for that."
Deighton is the Wall Street Journal reporter whose story this episode is built on, and she covers how brands behave on platforms. This summary covers the opening of the episode, which is the portion of the recording available to us.
I listened to the full segment so you can skip it.
Here are the 4 takeaways that matter.
👤 Guest: Katie Deighton, the Wall Street Journal reporter whose reporting on Reddit and brand behavior the episode is built on
🎙️ Host: Ryan Knutson, who presents The Journal, the paper's show about money, business and power
📰 Published: 31 August 2026 on the WSJ podcast feed
🟣 Apple Podcasts | ⏱️ 21 min
Key Takeaways
The chatbot answering your recommendation question is often relaying Reddit
Restaurants, Halloween costumes, stain removal — the everyday questions people ask
Reddit is valuable to models because it is unusually trustworthy, not because it is large
Years of posts from real people across an enormous range of subjects
People were already routing around search to get there, which is the tell
The habit was typing a query and adding Reddit to it, to get a crowdsourced answer
Advertising money is now arriving, and Deighton says it threatens the platform's core
1. Chatbots Answer From Reddit
Knutson opened with the kind of question people put to a chatbot rather than to a search engine — good restaurants in Mexico City, family Halloween costume ideas, how to get a mustard stain out of a shirt — and said that if you have done this, there is a good chance the chatbot is getting its ideas from Reddit.
The mechanism Deighton described is scraping, filtered by trust. "Artificial intelligence — Google Gemini, Claude — they scan the internet, they look for high trustworthy sites, and they scrape that content and they use that to make their answers."
"And Reddit has proven to be a really important place for that."
Knutson's summary of why is about the shape of the corpus. He said Reddit, with years and years of posts from real people about a huge mix of stuff, is a gold mine for a large language model
2. The Habit That Came First
Deighton's evidence that this is not new is behavioral rather than technical.
People were already doing it manually, before chatbots existed. "Before we even had LLMs and chatbots that we were using all the time, people would go on to Google and they would go, take me to Reddit."
What they were buying was two things: a straight answer and no sales pitch. "Like, I know that I will get a straightforward answer that will be crowdsourced by the human population, and I don't think I'm going to get caught out by any subliminal marketing."
That second half is what makes the rest of the segment a business story rather than a technology one
3. Brands Suddenly Care
The commercial consequence lands on Reddit's revenue, and on the companies that ignored it.
Deighton called the AI role a change in the platform's position, not an increment. "This role that Reddit is playing in AI is a game changer for the platform, and it's also causing brands to rethink how they participate on Reddit."
The reversal is abrupt after a long absence. "Brands suddenly care about Reddit after years and years, decades of brands not really thinking too much about this platform."
4. Ads Threaten the Core
The last thing Deighton said in the opening is the tension the episode is built on.
"However, advertising is the thing that maybe threatens what is Reddit at its core, which is honesty, real people, and no kind of manipulation of what you see on that platform."
Her hedge — "maybe" — is hers and is kept: this is a risk she is naming rather than an outcome she is forecasting
The circularity is what makes it a real problem. The absence of marketing is what made the platform trustworthy, which is what made models scrape it, which is what made brands want in
Bonus Insights
Knutson dated the episode on air. He closed the opening by identifying the show as The Journal, the Wall Street Journal's programme about money, business and power, and the day as Monday, 31 August
Deighton is introduced as a colleague rather than an outside expert, which is how the show signals that the reporting is the paper's own rather than a guest's
Deighton's bottom line is that Reddit's value to AI companies rests on the one thing advertising erodes — that what you read there is written by people with nothing to sell — and that brands arriving now are arriving at the thing they would spoil.
Products, Companies & Tools Mentioned
Reddit (The platform the segment is about: a scraping target for AI models, and now a destination for brands that ignored it for decades)
Google Gemini and Claude (Named by Deighton as the systems scanning the internet for trustworthy sites and building answers from what they scrape)
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