For most of us, its just a bit of fun, like doing a crossword or something. For me, wasting time filling my head with enough info to do it without books is overkill.
Also, if a shinsa team need a suitcase full of references then what hope have most of us got looking at images on a forum.
As mentioned, if described well with good images, someone always gets it.
For me personally, the fun of this hobby is the journey and learning as i go.
Forums and an increase in knowledge can be difficult though, helping others often ruffles feathers can can lead to childish name calling etc, which ruins it for most folk.
Most here regurgitate what is written in books. Ford Hallams knowledge is immense, and then we have folk like Jussi that come across as not being stuck in 1860, compiling info etc.
So most of us, know *** all