I feel that the main reasons that many members prefer to lurk and not post their opinions/thoughts is that as we all know this hobby can be tough at times. Just when you think you have gained some experience and could contribute in a meaningful way your tank has a way of bitch slapping into reality. I have been keeping reef tanks for longer than most of the members on SoCali have been alive (40 years of experience) and I still struggle at it. Most recently after I purchased a large sack of a certain high grade salt produced in Turkey. After several water changes and weeks of head scratching, frustration and many lost corals I finally figured out what the problem must be and consulted with the owner of my LFS. I discovered that he was having the same issues as I was, with the same salt. I would never want to give somebody on the forum bad advice and cause them to have issues with their tank so mostly I am one of the knuckleheads who just lurks and tries to learn from the so-called experts.