Not so sure the one insult per year rule is actually a thing outside of pines and the like.
I am a big fan of the KISS approach - keep it simple stupid. There's a lot to learn, but I believe that the fundamentals can be explained relatively quickly and then implemented. And when I say implemented, I say this in the least arrogant way possible. I aspire to develop trees like the ones I've seen on this site, but have no misconceptions about my skill level. Tried and true technique and experimentation in implementation should produce finished trees. Will Mach5 be hounding me to buy my trees? Probably not. That's because the level of development needed to produce a tree like that will require a more nuanced approach. Newbs should be taught to develop newb trees, not butcher everything they touch because they are being advised to
I think there can be a one-stop for newbs to get very basic information without all the nuance and disagreement. For example, I don't think explaining soil has to be the equivalent of astrophysics, requiring folks to experiment with endless soil combinations and get a degree in soil mechanics. I could swear I listened to a video of Walter Pall saying he uses whatever he has lying around. Of course, he understands the fundamentals of soil and therefore can do this effectively (assuming that's what he does). The answer to the question of "I'm a newb and need soil, what should I get?" should have an answer. Maybe something like, "X is a safe bet, but here are all of the details". I think this is confusing, but not nearly as confusing as it's made out to be.
I tried to do this with a thread on choosing material and planned on posting other similar threads. Was a little hesitant as I'm a newb myself and the last thing I want to do is give the wrong info. I have one on soil that I may just post and open it up for inevitable criticism.
Another example - knowing when to repot shouldn't be rocket science either. Of course, circumstances will arise where expert opinions are needed. But otherwise, one should have a firm enough grasp of plant biology and the tried and true practices to answer the simple question themselves.