According to this Washington Post story, a new report reveals that slot machines are manufactured to trick players. The machines often use positive reinforcement, in the form of celebratory sounds, to convince gamblers they have won when they are actually losing their money.
“New York City Launches Sweeping Investigation Into Polymarket and Kalshi” | The Wall Street Journal
August 12, 2026
By Kevin T. Dugan, Katherine Long “The New York City Council is investigating four prediction markets for alleged deceptive marketing