And that is why this is bullshit, because, if I want, I switch to mobile roaming for the price of one beer. You cannot stop me with bullshit like that, if I want to do something that they think is illegal.
And not only that, I can buy an anonymous SIM card, if I want. What exactly are you saying, you are defending this stupidity? What else are you defending, if someone uses Facebook or Whatsapp for terrorism, you gonna shut them down.