[bpt3]

Smart people who are "gambling" for anything other than fun only would participate when they have an edge.

There are many ways to obtain such an edge, and the casinos are highly motivated to prevent that from happening.

[mr_mitm]

Not on polymarket or kalshi. They welcome what would be insider trading on the stock market.

[bpt3]

Because they aren't (yet) casinos. Their current business model is much more like a stock exchange, but without the regulation as you point out.