My opinion on the matter...

I think that doing 3d or airshows for crowds is cool. I notice at our club people fly in the pattern and never hover over the runway. Whenever we have a "big" 40% fly we usually give him the sky to himself. That way hes got the whole area to himself. To me its fine. I can see what your saying about people getting close to the planes, as long as its just the pilot it seems okay to me, there plane, there life. I think people have enough sense to say when enough is enough.

I fly at my school and usually with just one friend, so we get the air to ourselves and go by our rules.