They should be using seedboxes to seed, and should be using VPNs in other countries to upload their content. Worst case scenario, torrenting completely moves to i2p, eradicating the problems being faced by these groups today
Even if you do pay them anonymously, your IP will be recorded when you access/download from them. Case in point: Mullvad was forced to shut off port-forwarding because of torrent traffic on their network. Mullvad allows you to pay with Monero.
Don’t do it for the privacy, do it because having the server in a different country like the Netherlands makes it easier to pirate. For all they know, you’re just accessing random IPs in the Netherlands and all they see is HTTPS traffic.
Several Piracy-Related Arrests Spark Fears of High-Level Crackdown * TorrentFreak (torrentfreak.com)