> They're fundamentally broken and the fact that they're allowed is a sign and symptom of a dysfunctional society.

There are two ways to view a market (prediction or stock): as socially accepted gambling for posh elites (and now every wannabe rich), and as a prediction engine that refines people's opinions, beliefs and information into a most accurate estimate possible.

If you take the first view, insider trading is dysfunctional and unfair. If you take the second view, insider trading is the entire point, it's how you get strong signal into the system.

Prediction markets were conceptualized by people taking the second view.