Zcash Creator Zooko Wilcox-O'Hearn Blasts Coinbase Over 'Gambling-Like' Features

The founder of Zcash, Zooko Wilcox-O'Hearn, has sparked a heated public discussion about ethics and user protection in the cryptocurrency industry after launching a sharp public critique of Coinbase and its increasingly aggressive product promotions.

On Saturday, Zooko took to X — formerly known as Twitter — to express his deep frustration with the platform's behavior. His concern stemmed from a conversation with what he described as a vulnerable user: young, financially inexperienced, and not particularly knowledgeable about crypto markets.

"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," Zooko wrote. "I hate this with a burning passion and it makes me ashamed to be part of this industry."

The post quickly drew attention across the crypto community, prompting a direct response from Coinbase CEO Brian Armstrong, who attempted to defend the platform's decision to include prediction markets and similar high-risk features.

Armstrong anchored his argument in libertarian values, stating: "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." He also pushed back against the negative connotations attached to the word "gambling," arguing that no investment is entirely safe and that defining what is "acceptable" remains highly subjective.

However, Armstrong did not entirely dismiss Zooko's concerns. In a notable moment of self-reflection, the CEO acknowledged that the way certain products are promoted may need to be reconsidered. "It doesn't feel right to aggressively promote high-risk products to unsophisticated users," he admitted. "There's a difference between making something available and making it the focus of the app."

To address these concerns, Armstrong proposed several platform-level changes aimed at giving users greater control over their experience. These included clearer disclosures about product risks, AI-powered financial literacy tools, and personalized onboarding options that would allow users to enable or disable specific product categories based on their preferences — without imposing those restrictions on the broader user base.

Armstrong also argued that the broader question of what financial products are legal and morally acceptable should ultimately be decided by voters and legislators, not by private companies. "Private companies shouldn't be the ones drawing those lines," he stated.

Despite the intensity of the initial exchange, the conversation concluded on a constructive note. Zooko responded to Armstrong's reply with a brief but telling message: "Thanks for the thoughtful response, Brian."

The episode has reignited a long-standing debate within the crypto sector about the responsibilities of major exchanges toward their users — particularly those who may be least equipped to navigate the risks of speculative financial products. As platforms like Coinbase expand their offerings to include prediction markets, sports betting integrations, and other high-volatility instruments, questions about where to draw the line between user freedom and user protection are becoming increasingly difficult to ignore.