I was just coming to say the prediction markets are probably way, way worse for society; sports or otherwise. For one thing, they'll be around a trillion dollar market in a few years[1]. How is that in any way a good thing? For another, every bettor on a prediction market is incentivized to use insider information at best, or even to influence the outcome at worst. This is a low point of civilization.
No good can come of me having a gambling app, I already fool around too much with stocks.