Polymarket marketing practices are under scrutiny after the prediction market platform fired its chief marketing officer, Matthew Modabber, following an internal investigation into staged betting videos and undisclosed influencer payments. The dismissal, first reported by the New York Post on 22 October, follows a Wall Street Journal investigation published in June that exposed fabricated trading content used to attract new users. The episode lands as prediction markets push deeper into territory regulated sportsbooks and casinos already occupy, raising fresh questions about promotional standards in a fast-growing adjacent sector.
What happened
Modabber’s departure marks the end of his long-standing professional relationship with Polymarket’s founder and CEO, Shayne Coplan, with Modabber having joined the company in 2024 as one of its earliest executives.
He went on to build Polymarket’s marketing function into a team of more than 50 people before his responsibilities were reportedly scaled back ahead of the dismissal.
The internal review focused on allegations that Polymarket employed staged betting videos, engaged social media influencers without sufficiently transparent disclosure, and presented simulated trades as though they represented actual customer gains.
The Wall Street Journal investigation revealed that some online creators had posted videos falsely depicting customers winning approximately $1.9 million through the platform.
Separate reporting has put a figure on the money flows involved, with more than $2.5 million said to have moved through Modabber’s personal PayPal account, including payments to content creators for posts that lacked required disclosures.
The fallout extends beyond the boardroom. The National Association of Consumer Advocates has filed a lawsuit against Polymarket, Coplan and Modabber in the Superior Court of the District of Columbia, alleging deceptive promotional campaigns involving undisclosed financial relationships with influencers. The US Commodity Futures Trading Commission has also opened its own inquiry, though no wrongdoing has so far been established. Polymarket has declined to comment publicly, and Modabber has not responded to requests for comment.
Why it matters
The Polymarket marketing practices case is a governance story as much as a marketing one. Reports suggest the company’s board concluded that Modabber was holding back efforts to professionalise its image as it weighs a potential initial public offering. For a platform valued in the tens of billions and courting institutional investors, unresolved questions about promotional honesty carry a direct cost to credibility and valuation.
For operators and affiliates across iGaming, the episode is a pointed illustration of where influencer-led acquisition can go wrong. Staged content and undisclosed paid promotion are exactly the practices that regulators in licensed betting markets, including the UK and several US states, have spent years trying to stamp out through advertising codes and affiliate disclosure rules. A high-profile enforcement-style fallout at a prominent prediction market platform gives ammunition to regulators already inclined to tighten scrutiny of performance marketing tactics, including those used by licensed sportsbook and casino affiliates.
The bigger picture
Prediction markets have spent much of 2026 positioning themselves as a lighter-touch alternative to traditional sports betting, with platforms such as Kalshi and Polymarket attracting both bettors and operator partnerships. DraftKings has talked up its own DKeX platform’s growth in the same period, and IG Group has applied for a UK gambling licence to support its own prediction markets launch later this year. That expansion has brought prediction markets closer to the compliance expectations long placed on licensed gambling operators.
Polymarket’s experience suggests that proximity brings scrutiny it may not yet be fully equipped to handle. As prediction market platforms seek legitimacy, partnerships and eventually public listings, the standards applied to their marketing will increasingly mirror those already enforced against regulated betting brands and their affiliates. Operators weighing partnerships with prediction market platforms, and affiliates considering where to direct traffic, now have a fresh case study in how quickly promotional missteps can turn into regulatory and reputational liabilities.
Sources
- iGaming Business – Polymarket fires chief marketing officer amid promotional practices investigation
- Crypto Briefing – Polymarket fires chief marketing officer after internal investigation
- KuCoin News – Polymarket Fires CMO Matthew Modabber Amid Internal Probe
- Coin Insider – Polymarket Reportedly Fires Marketing Chief Matthew Modabber
- Crypto Times – Polymarket Fires Marketing Chief Modabber Over Staged-Trading Scandal
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