This is because the federal government had the foresight to make a law that 1. Limits maximum damages to something like 5,000$ so that it isn’t worth the copyright mafia’s time to pursue, 2. ISP get complaints from copyright mafia and forwards it to the user but the ISP isn’t allowed to share the user details with the copyright mafia.
That’s why these emails always try and entice you to click a link and settle the crime for a few hundred dollars. They can’t do anything else as they don’t even know who you are but a few chumps will click and pay so it’s free money in a way.
Anyway, great piece of law and I’m glad lobbies didn’t get their way with that in Canada.
Many countries just don't care. A few EU ones and USA might, but once you go into slightly poorer territories, noone cares about foreign copyright.
So, treat it like you would treat seeding a pirate bittorrent.