Brian Armstrong Responds After Zcash Founder Criticizes Coinbase Betting Prompts

Highlights:

• Zcash founder criticized Coinbase for pushing betting-style prompts to a financially vulnerable young user.
• Coinbase CEO Armstrong supported user freedom but acknowledged risky products need more careful promotion.
• Coinbase is considering improvements to disclosures, educational tools, and user controls for its high-risk products.

Coinbase CEO Brian Armstrong has responded after Zcash founder Zooko Wilcox-O’Hearn criticized Coinbase for showing betting-style prompts to a young and financially vulnerable user. In a June 27 post on X, Zooko said the Coinbase app had started pushing the user to “gamble on sports and the price of Bitcoin.” Armstrong replied on June 28 and said adults should have freedom over their money, but he also agreed that high-risk products should not be pushed too strongly to inexperienced users.

Talked to a user (a vulnerable, young, unsophisticated, financially poor user) who has the Coinbase app, and it has started prompting them to gamble on sports and the price of Bitcoin. I hate this with a burning passion and it makes me ashamed to be part of this industry.

— zooko🛡🦓🦓🦓 ⓩ (@zooko) June 27, 2026

Zooko’s post focused on user protection. He said he had spoken with a user who was “vulnerable, young, unsophisticated” and financially poor. According to him, that user already had the Coinbase app, and the app had started showing prompts linked to sports betting and Bitcoin price bets.

Zooko strongly criticized that approach. He wrote that he hated it “with a burning passion” and said it made him ashamed to be part of the crypto industry. His comments started a wider debate about how large crypto platforms should promote high-risk products to retail users.

Armstrong Defends User Choice but Accepts Promotion Risk

Armstrong pushed back, but he did not fully reject Zooko’s concern. The Coinbase CEO said there needs to be a balance between personal freedom and responsible product design. “I’m pro-freedom,” Armstrong said. He added that “consenting adults should be able to do what they want with their own money, as long as they’re not harming others.” In his view, companies should not treat users like children or decide for them.

Interesting — and I appreciate the take.

I think there’s a balance here.

I’m pro-freedom. Consenting adults should be able to do what they want with their own money, as long as they’re not harming others. I don’t want companies patronizing users or dictating what they can do…

— Brian Armstrong (@brian_armstrong) June 28, 2026

Armstrong also said people use the word “gamble” in different ways. He noted that some people may call stock trading, early Bitcoin buying, or early Zcash buying gambling. He said there is “no perfectly safe investment,” and people often disagree about what level of risk is acceptable.

At the same time, Armstrong accepted that promotion matters. He said it does not feel right to “aggressively promote high-risk products to unsophisticated users.” He also said there is a clear difference between making a product available and making it the main focus of an app.

Coinbase Looks at Better Controls for Risky Products

Armstrong suggested that Coinbase could reduce the risk through better disclosures, financial education tools, and more personal controls inside the app. He mentioned AI-powered financial literacy tools and user preferences during onboarding. Under that idea, users could choose whether to enable or disable certain product categories.

The company’s own prediction market page says these contracts involve substantial risk and may lead to the loss of the user’s entire investment. The exchange now faces a wider trust question as it adds more products. Crypto platforms want to give users more financial tools. However, they also need to make sure users understand what they are using.

Later on, Zooko expressed his gratitude for the thoughtful response by Armstrong, which showed a respectful tone. Nevertheless, it has become clear that as prediction markets become more prevalent on mainstream apps, crypto companies are under increasing pressure to provide a balance of innovation, profit, and user protection.

Thanks for the thoughtful response, Brian.

— zooko🛡🦓🦓🦓 ⓩ (@zooko) June 28, 2026