After a short time serving one of those torrents, I have lots of connections from China, each pulling down about 130KiB/s. My outgoing bandwidth has been rising slowly, from only 400KiB/s when I started writing this comment to 3MiB/s now.
Those are legitimate peers. The bots are all unencrypted with the \0 client ID. You must also have your torrent port open for them to connect to you because they don’t have ports open. This fact is the only reason one is still able to download these torrents.
https://emergent.unpythonic.net/files/sandbox/Screenshot_202...