In its early days IPFS was being pushed as a anti-censorship tool, obviously blocklists/denylists is the opposite of that. But it’s all a moot point, you’re linking to a discussion from 2015. AFAIK denylists were already implemented e.g. https://blog.ipfs.tech/2023-content-blocking-for-the-ipfs-stack/
I tend to look towards full blu-ray/remuxes/flac that sort of thing, private trackers are more suited towards that with both p2p groups as well as the general scene groups.
Public torrents work well enough but the release groups that cater to public torrent indexers tend to be in a race to the smallest file possible. Hence you see a ton of “4K” uploads that are tiny for download but are crap for playback beyond a phone screen. Even yify himself knew he wasn’t aiming for quality encodes. But generally speaking there will always be people looking for those type of uploads and public torrents do cater towards that.