You are right on contentious planning applications, it does bring out people who care about the planning application being discussed, of course, otherwise they disappear into the background. My council has had limited to no success getting local objections listened to as there is a lack of housing in my county as well as the unitary's authorities limited ability to process planning applications.
There are surveys happening reasonably often, the Neighbourhood Plan survey has had good feedback, I was talking about public meeting attendance.
Thanks for your comment.