I started replying to you the other day, but its a big topic.
Rather than edit what I have, I’ll just post my thoughts as I threw them down
I’ve narrowed it down to this
You do raise a good point
As @StarGazer1258 mentioned above a couple of examples.
My first attempt at something similar to what you are asking is here ( I know it needs a facelift)
I did start a Part 2 to this as a more intermediate level, and the intention of a Part 3 Expert, deep diving into Data sheets etc.
But my Part 2 was eaten by the Forum whilst it was still a draft, and I havent got back to it…
My handy dandy tips and tricks is an attempt to consolidate some “out of the norm” useful info into a single thread, with the intention of branching off the Proxmark3 posts.
Into a Proxmark Wiki (for cyborgs)
SetUp (Windows - Linux- Android- Mac)
Commands - Structure - Shortcuts
Reading, Writing, Cloning, Emulating
Tips and tricks (Parts, Hacks, 3dPrint files) Placement
FAQS
Following that, as the name suggests, The other Thread will remain as a tips and tricks Wiki
If you go to the WIKIs youll see a bunch of other threads like
Also a documentation Thread
Also Amal has a few in the DT Info Primers
This is a good example
You are correct though, there is info all over the place, but it shouldn’t be TOO hard to find.
Basically what I am trying to say, it is a big job, it is happening slowly, and it will EVENTUALLY get refined and consolidated.
Or it might just become a Wiki page with links to Subcategories.
There is no timeline on it, but it will happen,
Lets just call it SOON™
Normally it goes like this:
Person Asks question in a new thread ( That should have and could have been searched first.)
anyway
Person gets answer they wanted, or they may have more questions OR want their hand held and walked through the process ( Not an issue, because the amount of information can be overwhelming and a whole new language to a lot of people)
Also
The search function works pretty well.
Or
read the WHOLE forum, from start to finish…I did 
Alternatively
Ask your question, will will probably get the answer you are looking for.
In the interim, is there a specific thing you were looking for that we might be able to help you with?