Today I accidentally hit the red button at the end of a ride instead of the green one. This was my own fault (touchpad on a laptop that is not ideally placed), but it would have been nice if the app had asked me for confirmation to ditch that ride.
In fact, it is rarely the case that I do not want to save and upload a ride, so I wouldn't mind if the ride would be saved automatically. To make it perfect, automatic saving could be an option that is activated in the settings.