A sportsbook can warn a customer about gambling while continuing to encourage another bet. ProPublica’s new documentary companion to its sports-betting investigation puts that tension at the center: what happens when someone deliberately displays the behavior that an operator’s safeguards are supposed to catch?

Jake Pearson, Lisa Riordan Seville and Nadia Sussman describe a ten-week reporting experiment in which ProPublica funded Pearson’s betting and its documentary team filmed him using DraftKings and FanDuel. He increased the size and frequency of his wagers and chased losses with larger bets. This was a controlled journalistic exercise, not an account of Pearson developing a gambling disorder, and one reporter’s experience cannot establish how every customer is treated.

The companion article reports that Pearson received pop-ups, time reminders and messages encouraging a pause after losses. He also opted into some DraftKings safety tools. Alongside those interventions, however, he encountered design choices and promotions encouraging more gambling, including some served soon after he had set limits on his play. The issue is not simply whether warnings exist, but whether they interrupt the behavior that generates revenue.

DraftKings says it trains more than 5,000 employees on responsible gaming and has more than 50 staff dedicated to its responsible-engagement program. FanDuel says its system is designed to identify risk early and give customers real-time information. Those assurances should be read alongside the reported experience, rather than treated as evidence that the safeguards worked.

The financial exposure falls on bettors and their households. The article cites a Siena Research Institute survey in which about a quarter of active sportsbook account holders said a betting loss had left them struggling to meet financial obligations. That is self-reported survey evidence, distinct from the experiment, but it explains why the effectiveness of these tools matters beyond an app’s engagement numbers.

Watch the documentary linked by ProPublica. This is a new video companion to the investigation already covered here, not a separate set of experimental findings; the account above summarizes the accompanying article.