There is a large flaw in the approach of people not listening to "experienced" reefkeepers advice. No matter how much someone has read and think they have learned from what they have read, it will do them no good without experience. Experience enables people to actually understand what they have learned and the knowledge base of how to implement what they have learned properly. Without experience someone has not done something they read about it. Reading about it is nothing like experience and is not a substitute for it. If someone has only read about it why should people take their advice over someone that has actually done it? I sure would not. It makes the person sound like they think they know more then someone that has actually done it. This is not true most of the time and comes of arrogant. I can guarantee you that if someone who has experience were to read the same thing as someone who doesn't, the experienced person will take more out of it and understand the concepts more. Not just parts of it like someone without experience would. Because past experience has already laid the groundwork for understanding. Nothing beats experience in doing anything in life. If that thought process was true it would be the same as I read about how to treat illness on the internet so that means I should not listen to a Dr because I read about it. Or someone knows more about chemistry then Randy because they read about it so they should take his advice with a grain of salt. Or that someone that has 5 years in this hobby has a better knowledge base and understanding then someone with 10 years or more because they read about it. None of these are true. You are allowed to have your opinion but this thought process sets a bad example for the new people in this hobby that hear someone say they don't listen to people with experience. That gives them the impression that they should not and that is bad advice. (Not saying you gave that advice) I will put my bet on someone with experience over someone that has read about it any day. I definitely take what people have to say that have only read about something with a grain of salt. Not attacking you I just disagree and am just expressing my opinion.
For the comment of people being focused on par and pur but don't really take into account "rest". The same can be said about the other factors like proper available nutrients, waterflow and experience level that also factor into coral growth. Experience level is one of the most important things in this hobby to be successful. The more you do the more you have learned. A large portion of success in coral growth comes down to experience. A lot of the time the deciding factor if a coral is going to grow, to live or die depends on the reefers experience level. Not because they read about it they are good to go. By you ignoring experience you are just as guilty as those that didn't factor in the rest period.