There are already plenty of people who promote scam cures. We shouldn't deny potentially useful treatments to patients in dire need just to reduce somewhat the business of scammers.
Detect and punish scammers if they are an issue. Allow people to take risky medical treatments if they have serious incurable illnesses.
Detect and punish scammers if they are an issue. Allow people to take risky medical treatments if they have serious incurable illnesses.