There are many torrent sites out there and also community boards that attach torrents at their place. It may be the peers are from sources like that, I also wondered about it already.

Having more than 1 peer in the DHT basically means that more than 1 torrent client asked about the torrent in the last hours or so (I don't know the timeouts of this DHT).

What you can do is to stop the torrent for a few days, then start it again and see if it still has peers - this would lower the impact leading to incorrect stats by your own footprints, so to say.