A few months ago I grabbed this torrent from rarbg, and it took weeks to download. Often going days with no seeders.
I finally got it, and decided I'd seed beyond my usual 2x to help others get this. Then rarbg went under, and now I think I'll just keep this one going.
There are archives of all the rarbg magnet links. I still use them to successfully find stuff. As long as those links are out there it is still possible to help people out.