I just got a walking treadmill and I use strava on my Apple watch to track my activities, choosing Indoor Run. I like it because I feel it's more accurate than the regular watch exercise app native to the watch. However, I don't need my followers seeing every time I walk on my treadmill for an hour, sometimes twice a day. Right now I have to go in and manually change the setting to Show: Only Me. It would be nice to we could set certain activities to default to Only Me. I think others that track their daily walking commute would probably like the same functionality.