[Yizahi]

If they sell contracts on market prediction, then any person doing for example insider trading on corporations, fixing outcomes of sport events, directly paying out others to force event outcome, blackmailing people, or just directly adjusting some result like the CDG weather guy are completely in line with the platform rules and all that is perfectly legal. But since Poly and Kalshi themselves admit that those things are "unfair" and forbidden they have themselves removed their "just a contract" status and transitioned to a gambling status, where indeed fixing matches is bad.