Please implement something to teach players how to play

[Arkevorkhat]

Simple solution:
make community guides a thing accessible in game. There're TONS of useful guides on the internet. Job guides, dungeon/trial/raid guide, etc.

I agree in theory, but in practice, I'd worry about the need for moderation and vetting, and who would be responsible for doing so.
As much as it pains me to say, it seems like the GMs especially are somewhat disconnected, for lack of a better term, from the game at large; they mostly seem to keep to themselves and they often don't understand hard content. That deficiency in understanding has caused me issues when I made a GM call against a person who was griefing in a Savage party finder.