I'm not surprised that PredictIt performed so poorly. They take 10% of your profit, so you need a large margin of expected value to justify getting in and corre

I'm not surprised that PredictIt performed so poorly. They take 10% of your profit, so you need a large margin of expected value to justify getting in and correcting a mispriced question. To my knowledge, these markets are deliberately restricted. If you allowed unlimited betting, then experts would come in and eat these uninformed bettor's lunches. Except if you allowed that, then you face an ethical problem. You'd be providing a way for people to profit from influencing outcomes (e.g. questions that could resolve based on someone's death).