The SEC stated a few years ago it doesn't regard cryptocurrencies as securities, so that's why they don't police it. (IMO they are clearly securities, but the SEC may not want to allocate resources to policing it.)
What many people don't realize is that insider trading of assets other than securities could still potentially be criminal fraud. However without the SEC, there is no specialized police force for addressing it.
What many people don't realize is that insider trading of assets other than securities could still potentially be criminal fraud. However without the SEC, there is no specialized police force for addressing it.