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.
When rarbg went down I immediately went and for any torrent I still had loaded in my client I quadrupled my normal ratio (3.5 -> 12.00). Then I also just increased my ratio generally.
I wish I had more disk space to keep things going even longer, but I really gotta cycle stuff out unfortunately.