Personally I think that a blanket statement like that is a bunch of bunk! There is much coral that never makes it to our tanks, and I think that the impact of dried coral use impacts a reef more than that which actually ends up in our personal reefs.
I am not against harvesting certain corals, but I feel that destroying our reefs for profit is stupid. I totally understand the statement "Im a scuba diver - and i'll never take anything off the sea bed.", and I applaud this guy for making that statement and commitment.
There are alot of reefs destroyed for road beds, and other things that far exceed our consuption of reef related materials. I am glad that there are companies that aqua-culture live rock for the aquarium trade. With many of the people on this and other forums, our hobby has progressed greatly in the past few years. There are many people trading frags and propogating corals. A lot of small sites have sprung up on the internet offering aquacultured corals, inverts and captive bred fish. I feel that we are having great success in the field of reef keeping.
I just hope that people that do not understand our hobby quit making statements like But you shouldn't have coral in your tank. That stuff takes hundreds of years to grow and at the rate we're destroying it there will be none left. The statements just arm our politicans to destroy the hobby we all enjoy.
If we become knowledgable in our endeavors, we will helps save the reefs. I personally do not consider myself to aid in the destruction of coral reefs, but I also do not plan on quitting a hobby that I love.
Just my thoughts...