I think it would be very professional and inspiring confidence, if the user could verify the settings from the command line/the config file(bitcoin.conf), in the running instance in the GUI.
Maybe in the GUI window “help”->“command line options” for every option that sets a parameter, there could be a line inserted, that shows the current active value of this parameter.
E.g. if one has set onlynet=tor in bitcoin.conf it would be nice IMHO, if the user could verify that this setting is active, in some window.
Maybe even with a reason (e.g. state “listen=0 because proxy parameter is set”)
Moved from https://github.com/bitcoin/bitcoin/issues/8165.