Hi,
I've found out that pressing Delete while a torrent's file list is displayed and even has the focus immediately removes the whole torrent from the application. I think it would be nice if it didn't exhibit such an unexpected behaviour. I would prefer it to ask for deleting the selected files, but I think even no action would be better than deleting the torrent.

In each KDE application you are free to customize keyboard shortcuts. You may use empty shortcut, virtually disabling some keys.

I admit that option to ask user for confirmation before deleting torrent from list might be a good idea.

My point is, the application shouldn't modify the torrent list when the focus is on the file list.