"Oh, well, your torrent client decided to automatically use your vpn because it saw one running and somebody decided that was the right behavior because they thought you were dumb."
Users have preferences. Users can read. Let them learn and sort it out. Don't ruin a simple program with tarred assumptions of what is correct for users. Prefer simplicity.
Also don't assume using a vpn is more secure. That is a wrong assumption.
A bittorrent client, even in CLI form, is not simple software at all. Have you ever taken a look at the myriad of available settings?
Most GUI clients have a sort of "wizard" that helps you pick acceptable connection parameters. This feature alone has a truckload of assumptions coded in. And that kind of feature exists for a reason: no nonsense-seeking users. They're the majority. Just let me download my file bro.
It baffles my mind when developers just expect users to tweak low level settings. Sure, it's good if stuff is configurable, but it should work correctly out of the box. Like, you spent days or weeks working on this feature, don't expect your users to do the same...
But to be more specific with my feedback, it seems a bit silly that Transmission (I'm trying 4.0.0b1 right now) doesn't allow me to specify that it must use "VPN X" (as opposed to "VPN Y", which is also available) for downloads.
I understand that I could mess with namespaces or containers or VMs and probably make that work, but "use Bittorrent client with VPN" is more or less a universal use case and should be straightforward.
I agree with this statement, but what should a user ‘read’ in order to understand this?