The behaviour described by the second paragraph from isdal describes what I want to be happening and what I have always assumed to be the case.
Paragraph three is what made me wonder. It seems to say that if I wanted to, I could set something in the software such that a file that I got from the OneSwarm web interface file search that included the original tracker information could be downloaded over the public network.
How can I make sure that is not so? Where in the web interface or the classic UI do I find this?
I don't know if it makes a difference to this discussion or not, so I should mention that I do use OneSwarm as a regular bittorrent client to download anime from public torrent servers. Do I need to turn this ability off completely to ensure that I am not accidentally downloading a file publicly because of how some other OneSwarm user acquired it?