Touch, don't touch. Feed, don't feed--divers are going to do what they will do. Rules, understood or not, may help a bit but let's face it. For an occasionally sophisticated species we pretty much do what we want and pick and choose our justifications for doing so. Sometimes the reasoning is scientific or just common sense, often times it's "because I say so". Above or below water photogs tend to either shoot things as they find them--or mess around to "improve" the shot. (I'm reminded of a story about a National Geo shooter setting off exposive devices in a wildlife refuge to get the "perfect" shot of massed of birds in flight.)
Good to have these discussions though, since they may help a bit with some folks. However, I've probably seen more damage created unknowingly by photogs with abysmal bouyancy skills, pushing newly rented camera rigs into coral (or trashing things with careless fin kicks) than has occured by knowledgeable divers gently moving something to a better background. Get in either type of divers face? Not at the risk of getting reactions like I've heard in this thread. So yeah--I'll mind my own business. And hope some education or a thread like this may help improve things.
Realistically though it is a BIG ocean and in comparison, a few divers here and there messing up isn't really what is causing the planet's BIG problems. It's all of us. The entire semi-sophisticated species. Consuming, plundering, over-populating--heck, even just trying to innocently enjoy ourselves on vacation. Anyone catch the latest news? A lot of coral bleaching is now believed to be caused by washed off sunscreen. Sheesh, we don't even have to touch anything to upset an entire eco-system. Still, the idea of messing around with critters to get a better shot? Why not just become better with Photoshop? Create whatever "reality" you want and let the critters alone.
Oh jeez. A rant. Time to mind my own business. Think I'll just go sit in the corner with my mask on my forehead and wonder why I'm not diving... // ww