Casinos are regulated and have to be much more transparent. In Europe and Australia slot machines are required to have appx min RTP (return-to-player) of 95%. With sportsbetting, bookmakers cannot just make up results. It's a dirty business preying on weak, but it's not hiding that.

Polymarket prediction results can be swayed by whales and differ from reality. Example: they ruled Tesla unsupervised full selfdriving a real usable feature in ~Feb 2026. It still doesn't exist and won't. This decision is far from being the only such one.