I found I2P much better than Tor network, and now it supports BitTorrent protocol too https://geti2p.net/en/docs/applications/bittorrent .
Why haven’t the pirates migrated to I2P? Why are we still using clearnet and making people backout of seeding cause of DMCA?
Usenet can yes… absolutely… but likely only for the text groups… for binary newsgroups you’re going to have to pay and you’ll need to do your research to find one that’s (ideally) not a highwinds backed supplier as they automate DMCA takedowns.