I feel like articles on a specific fish, or maybe a few specific fish are good. However, I think they need a bit of personal experience in them. I own like 15 books on reef fish, so I can go look up the generic paragraph about how this damsel grows to 42 feet and eats whales, but if someone actually kept one and has some real anecdotes about that damsel, that would be pretty useful in my decision. (hopefully they would include some details on where to get feeder whales)
What I find myself doing over and over is needing a specific bit of knowledge. For example, I want to set up a calcium reactor. I need to know what kind of needle valve to buy, what bubble counter, where do I get CO2 refilled, what kind of different pumps can/should be used to feed the device? Is there a magic formula for figuring out calcium drip rate or do I wing it?
I want a sump. Who makes sumps? What different kinds of sumps are there? Do people make custom sumps? Who are those people? I could spend 12 hours on google looking up sumps, or maybe read an article that says "these are 12 common manufacturers of sumps, 4 of them are R2R supporters, so they are extra cool, and these two will make custom ones"
Product reviews would be huge. I want to buy the bubble annihilator 7000 skimmer. Sure, I can go on BRS, and read the short "I have this skimmer and it annihilated bubbles, 4 stars", but I kinda want to read something a bit in-depth. Some pictures, some data like "it's been running for 9 months and is still annihilating bubbles", or "the supplied laser isn't strong enough to annihilate larger bubbles".
These days alot of people make video reviews of things. Maybe if they submit them, you just post those? Maybe at the end of a review article we could add "I also found these 5 video reviews of the device, embed,embed,embed"
There is indeed a ton of information on these forums, but it's often difficult to hunt it all down. When I built my carlson surge, I dug around on this and the other forum, found maybe 10-20 posts, each having a tiny bit of data, and had to spend a few hours cobbling it all together from the anecdotes and jumbled mess. What makes an article wonderful, is that ideally it's all in one place. I can just read the article on how to build a carlson, and go start building. Even if it only helps a few people, at least those few people don't have to scour the internet, or worse give up because they can't find the data.