> This phase is the same thing derivatives markets looked like before the 2008 crisis and Dodd-Frank, and several other waves before that of crisis and reform (Securities Act, Market Reform Act).
Just because a rule was created after something bad happened doesn't mean that the rule is effective to prevent it from happening again. The most common result when they try to ban something without removing the incentive for it to happen is to cause it to happen less obviously. Then the rule (and all its unfortunate costs) gets credited with not observing the bad thing anymore, even though that's not the same as actually preventing it.
Notice that you can use the stock market in the same way as a prediction market. After that healthcare CEO got murdered the company's stock took a hit, as anyone could reasonably have predicted it would. That's a perverse incentive in line with betting that someone will kill the CEO. We don't really have a great way of preventing stock trading from creating that incentive, we mostly just rely on the fact that if you do the murder then murder is very illegal. But if that works for the stock market then why doesn't it work for prediction markets?
