When users watch you, they can see all of your activity, everything you comment on, everyone you watch, and to be honest this is way too inviting for stalkers.
If you are a content creator with a lot of followers, you probably have experienced at one point or another another user who is stalking you or is harassing you or for one reason or another, you would not feel very comfortable with them being able to instantly go to any comment you make. For some users like myself, I don't want to everyone to see realtime notifications for everyone I watch, everything I comment on, and so on.
My suggestion would be to associate this feature with some kind of mutual "friends" system where only your friends or people you approve can look at all your activity.
Customer support service by UserEcho