But to "chill dissent", you must be capable of tracking it down before it hangs you from a gas station. I don't think you're fully grasping how sudden and forceful change could come if just small number of folks decided to stop giving a fuck about the spirit of the law and do whatever they feel they can get away with.

In my experience, folks from a legal/court context who think they can get cute playing the "you can't prove I broke the rules" game will literally void their bowels in fear when the same is done to them by just one skilled hacker, let alone a group of them all focused on a singular task.