A reduction in anonymous death threats, a terrorist act. Just accountability, one used to have to show ID to get a phone, have an address too, it is easy to take a photo of those purchasing phones and cards, especially burner phones and hold them for a set period of time. An old cellphone to take a picture of the customer and the ID presented should do, your internet connection is tied to you through your ISP. It won't eliminate it, but it will reduce the volume by reducing access to morons and catch those who are stupid. This activity has social costs and is a threat to liberal democracy, threaten people in minor offices until they quit out of fear and disgust, then get your own fascist elected. This strategy is being used in the states on elected officials and education and health officials too, politics by violence, otherwise known as fascism.