alt Hacker News1. It's not something I don't like, it's something plain illegal in most of the world, including the US under the Dodd-Frank act, which the current executive has decided to not enforce.
2. The reason it is illegal it is beyond obvious: basic economics and game theory explain you how dangerous it is tying real world events with financial incentives.
Illegal or not, trying to ban it won't work.
You'll just push it underground and it will get even worse.
The cat is out of the bag.