By "no need", I mean that the program can be fully used without the need to adjust the settings. If you do adjust the settings, that is your preference to do so.
That being said, I fully see your point. For the next version, the program shall check whether it is being run from a removable drive such as USB stick, and if that is the case, then user settings are saved to the USB stick instead the system's Temp folder.
Thank you very much for this suggestion!