Speculation with things that affect the well-being and safety of other people should be banned, period. We have seen the impact it has had on real state or the food market to the point people have become unable to purchase new houses without indebting themselves for life. Also reminds me of that black mirror from last season where the IT crowd guy damages his own body to entertain strangers so they give him the money…
Or selling a kidney:
>In Nepal's 'Kidney Valley,' poverty drives an illegal market for human organs
https://www.pbs.org/newshour/world/in-nepals-kidney-valley-p...