When I think of education on such topics , I would hope for content that for example would identify the potential contaminants often found in tap water, why they can be harmful, typical symptoms of contaminated water source and potential remedies ie. RODI.I think it's a cool idea, but I will say that, as mentioned, there are a lot of differing opinions on subjects. Unfortunately there's no true formulas for running a successful reef tank.
For instance, everyone knows RODI is the only way to have a reef tank successful long term and yet RODI is relatively new to the reefing world and there are plenty of successful reefers using tap water.
Everyone knows MH lights are the best lights on the market but LEDs and T5s (and even T12s!) grow corals just as good and grow less or equal amounts of algae.
Everyone knows SPS only thrive in 0 nutrient systems except people grow gorgeous SPS with amazing colors in tanks with 1.4 phosphates and 100+ nitrates.