Traditional sports betting allows insiders to exploit static odds. In a liquid prediction market, a large bet based on inside information immediately moves the odds, reflecting that knowledge in the price and eliminating the arbitrage opportunity for the insider.

Despite its theoretical role as a market check, short selling is often a tool to create chaos and innuendo for profit. Activist short-sellers release reports to move markets for their own gain, which rarely uncovers true malfeasance and is an extremely difficult way to consistently make money. It's more about creating narratives than finding fraud.

The rise of accessible prediction markets creates perverse incentives for individuals to profit from insider information or by directly manipulating events. Examples range from a special ops soldier betting on a mission to someone using a hairdryer to spike a temperature sensor, illustrating a new, "democratized" form of sleaze.

First-come, first-served ticket sales are easily exploited by scalpers using bots. A more effective system combines non-transferable, name-ID-linked tickets with preference-based lotteries. This eliminates bots and allows true fans to indicate their flexibility on dates and seats, making the allocation process easier, fairer, and more efficient.

Platforms for "trading" on world events are fundamentally gambling, not investing. True investing involves owning an underlying asset. Betting on outcomes like a football coach's hiring has no underlying asset, making it equivalent to a casino bet, often fueled by economic desperation.

A more significant danger than insider trading is that individuals in power could actively manipulate real-world outcomes to ensure their bets on a prediction market pay out. This moves beyond leveraging information to actively corrupting decision-making for financial gain, akin to throwing a game in sports.

High-frequency trading (HFT) firms use proprietary exchange data feeds to legally front-run retail and institutional orders. This systemic disadvantage erodes investor confidence, pushing them toward high-risk YOLO call options and sports betting to seek returns.

Platforms like Polymarket effectively financialize all information. This creates opportunities for arbitrage based on publicly available, but not widely known, data. For example, a person won a large bet on the length of the Super Bowl national anthem by simply timing the rehearsals outside the stadium in the days prior.

The CEO of the StubHub marketplace also runs Andro Capital, a hedge fund that uses bots to mass-purchase tickets for resale on StubHub. This creates a severe conflict of interest, as the platform's leader is also its most sophisticated scalper, profiting from the very behavior that harms regular fans and which the platform is supposed to regulate.