You don’t have to seed. Connections are secure and encrypted. Speed is generally much faster, and more reliable. Things will either download in full, or fail pretty quickly, no hoping that 1 seeder comes online. Things are often posted to Usenet before torrents.
There are drawbacks too though.
Retention is pretty much the biggest one. Trying to download an obscure TV show from 12 years ago? Good luck.
That torrent with one seed in the Czech Republic might take six months to download, but I’ll get there. Maybe.
100%, as well as DMCA take down requests, and needing to often pay for indexer and provider.
That being said I still think it’s far superior to torrents, though I do maintain a good ratio on a large private tracker for those odds and ends I can’t get on Usenet.
I dont have the willpower to maintain good ratios. I’m an unapologetic leecher.
A lot of that has to do with my setup though. I only have a very small SSD to use for downloads, then the files get moved to spinning disks for storage. I tried to seed from HDD but it trashed my system.