I can't put a hit out in someone I don't like by buying penny stocks, but I can by placing a prediction market bet.
The twisted thing about it is that the surface logic of putting a hit on someone via prediction market involves betting that they'll stay alive. How innocuous looking.
The authorities heavily regulate penny stocks since Boiler rooms.
I don't see how regulating authorities could truly decipher the distinction between incompetence and pyramid hype fraud / shell company money laundering schemes at scale.