For people who want to automate their seeding or for those who want to seed on headless servers:

Download aria2:

    sudo apt install aria2

then run this one command in your terminal:

    for i in {1..10}
    do
      rand=`shuf -i 0-851 -n 1`
      url=http://libgen.rs/scimag/repository_torrent/sm_${rand}00000-${rand}99999.torrent
      nohup aria2c $url > $(basename "$url" .torrent).out &
    done

Another discussion on /r/datahoarder, https://www.reddit.com/r/DataHoarder/comments/nc27fv/rescue_...

/r/seedboxes has a thread too but no comments (yet), https://www.reddit.com/r/seedboxes/comments/nc2ari/rescue_mi...

But even with all that, I haven't managed to download more than 30 MB of data from any of these torrents, and one is still at 0 for a couple of days.