I don't know. If it was sent from an iphone, for example, I don't think they could ever prove who actually used that phone to send the message. Down at our local library you have to show your library card and sign the book, time and date, to use a computer. But all of that can be faked. What I do know is if they want you, they will get you.
@bigheadfred None of that matters. The ONLY thing that matters is they get the law. Once they have the law,they can then find people with necks to hang it around. You are essentially going to be required to prove you are innocent to THEIR courts and THEIR judges.
This was one of the first systems the communists created once they took over control of Russia. Good luck proving you are innocent.
AND......,if you DO have the money to fight them in courts,THEY control the judges so they will just keep refiling charges until they bankrupt you ,and THEN put you in prison.
Eliminating the 1st and 2nd Amendments is only the beginning volleys of their ultimate goal of eliminating the whole Bill of Rights.