You had an older screenshot (now replaced with a new screenshot), and your Safari "Download" window showed, that you download some .torrent files. You use a torrent client, which means that your IP address is part of a BitTorrent network. If you do not change this IP address, other torrent clients try to contact your torrent client. This can slow down your Internet connection.
Do you mean the old or his new screenshot (he changed the screenshot)? His old screenshot showed .torrent files.