Reefsandrotts, here is the link
TheGodparticle, that is true with many fish and copperbands do kind of fit in there but I believe if you have a little experience a copperband is not that difficult of a fish. People also say that about mandarins and I find them to be one of the easiest, no maintenance fish there is. Many fish fit your thinking about leaving in the ocean such as Moorish Idols, twin spot gobies and orange spotted filefish but copperbands are a staple of the hobby as are tangs (which I almost never keep as I find them boreing).
I think as yoy say 8 out of 10 people kill them, I think 8 out of 10 people kill everything they put in their tank, but it is a hobby that takes millions of creatures from the sea and virtually none of them reproduce to help their kind in the sea. We may keep them a month or ten years but we kill all of them.
I am also on a forum in South Africa and just this morning on a post from this same thread I was told that copperbands are extreamly common on their shores in turbid, silty water and they can collect babies by the hundreds. They are not a rare fish but I can see your point. Not everyone should buy one. I am giving one away
next week because my old one will not accept the new one and I will only give it to someone who will feed it live worms, clams and occasionally Mysis. They will eat other things but I feel worms should be a major part of their diet as is a tank that is not to sterile. If you want to feed other things, which may be fine for other fish, I don't think it will be the best diet for a copperband and I won't give that fish to them.
I have posted many times my feelings about how fish should be fed but still many people think that if they keep a fish for 3 or 4 years, that is a success. That is terrible and has much to do with food. This hobby is not rocket science, the information is there. We can't change the way fish digest food even though we have a wide assortment of things to feed them, they "need" certain things no matter how much of something else they may eat.
Just my opinion of course as I have no say as to what fish people buy and what they do with them. I have a little knowledge and I am trying to share it before I get senile