I'm generally OK with divers using a pointer stick correctly and judiciously as per my friend,
@uncfnp
I'm currently in Bonaire and went on a boat dive yesterday to one on the really great sites to the north, not accessible from the shore. A diver was sticking his pointer in the reef for nearly every photo he was taking to make up for poor buoyancy control. To make things even worse, he would bang it on his tank for everything he saw, regardless of importance. I had a polite talk with him during the surface interval. He was very defensive and essentially told to mind my own business and to get lost. I pondered asking the guide to speak to him but dropped it at that. Interestingly, he used his pointer only a couple of times on the second dive and quit banging his tank all the time.