Definitely a few. Media companies often send out infringement notices to ISPs to be forwarded to the user and I would guess this is how they get those IPs
private trackers and warez groups are the plentiful (IPTorrents, Speed, etc) if you are a good seeder and can maintain good ratios. anyone using a public tracker in 2025 deserves anything their ISP catches them doing imo.
public trackers and torrent sites are also just 90% malware and RATs.