Not at that time. That came after the us government pushed the swedish government to do something and they in turn "strongly hinted" to the swedish judiciary system that they better do something.
And finally the sentencing judge socialised professionally with pro-copyright lobbyists.
Just don't download any software and you'll be fine. Sure, there are better trackers for movies, TV shows and music nowadays, but I'm still glad we have The Pirate Bay
The Darknet Diaries podcast made a really good episode about The Pirate Bay, telling the entire story, including funny stories like the responses to these letters, and interviewing Peter Sunde, one of the 3 founders. https://darknetdiaries.com/episode/92/
It’s one of my favorites! Also check out Search Engine, one of my favorite new podcasts with an amazing host. “What’s the best phone to do crimes on”, the latest episode, is excellent—Darknet Diaries covered the subject as well, but this goes into even more detail.
I also loved “Who’s behind all those spammy text messages?” but that one gets DARK.
IIRC, the US accusers even quoted US federal law at TPB in emails preceding this. They had probably just assumed TPB were US based and this response where how they found out.
I'm still salty about Sweden bending over about this, tho. Sovereignty is a lie.
I remember this being discussed at length on various forums at the time (the legality, questions about what would happen if it all fell into the sea.) but as with so much of the Internet, it appears to have been largely lost. Luckily I was not imagining things this time and did find a couple of references.
The hunt for the cofounders of torrent site The Pirate Bay was a lengthy game of cat-and-mouse, spanning several continents. In the end, Fredrik Neij, Peter Sunde and Gottfrid Svartholm all ended up in prison.