Just look at all the movie plots that hinge on "ransom payment gone wrong" scenes, where the actual handing over of payment results in some kidnappers getting killed. With crypto, it just becomes "send a large amount of bitcoin to address X by date Y, otherwise we start shipping you various body parts of the kidnappee on dates Y+1, Y+2, etc." This dynamic is also the reason ransomware is so effective.
Just look at all the movie plots that hinge on "ransom payment gone wrong" scenes, where the actual handing over of payment results in some kidnappers getting killed. With crypto, it just becomes "send a large amount of bitcoin to address X by date Y, otherwise we start shipping you various body parts of the kidnappee on dates Y+1, Y+2, etc." This dynamic is also the reason ransomware is so effective.