You could consider it a crime to help facilitate actions that can be a danger to the society and individuals, like others have explained elsewhere in comments.

You could consider it a crime to help facilitate actions that can be a danger to the society and individuals, like others have explained elsewhere in comments. This would be similar to unregulated lotteries, ponzi schemes, smoking bans, etc. I definitely don't agree about criminalisation of cryptocurrencies (which also didn't happen), but there are valid points that are not only about stealing wealth.