Normally.
Queries of worldbuilding-process ought to be treated "normally". That is, the same way we treat any other question of any aspect of worldbuilding. Worldbuilding is first and foremost Art: the creation of an alternate world, a secondary creation or faerie in which places and events and people that may or may not exist here take form and exist there, interacting in new and different ways.
As an art form, worldbuilding has those things associated with it that are likewise associated with any other art form. There are artists --- generally speaking, that's us!; there are schools, philosophies, and approaches; there are resources, materials, and methods; and there is the overall process itself. Documentation is part of the overall process.
Michaelangelo didn't just wake up one morning with the Moaning Lisa in bed with him. Far from it. There is an entire story here that recounts how this art work came into being, from commission to conception, from sketchwork to materials acquisition, from preparation of substrate to final product, from artist to gallery.
On Topic! --- Questions of documentation and presentation are valid per the community's long-standing welcome of questions about "all phases of the worldbuilding process". Process is so ingrained in what we do that we've even got a meta or self-referential tag for it. It is true that these questions do not ask about stars orbiting planets or how many virgins it takes to satisfy the mighty appetites of a given dragon --- all of which queries fall into either the rabid research or the creative generation phases of worldbuilding. These questions focus on the much more pedestrian phases of okay what the hell do I do now and also putting it all together.
I am of course speaking to you from some years in the future, from the time this question was first written. In my time, we as a community seem to be losing sight that any artistic endeavour is itself a composition of steps. The Moaning Lisa isn't just a static painting hanging on a wall somewhere. It is also the multidimensional, the moving, the living bring-into-existence of the final image.
Included within the image itself is all the meta stuff. The conceptualisation, the sketchwork, the sourcing and preparation of ingredients (colours, tints, binders, substrate), the layering and mixing of elements in an alchemical reaction that moves from and goes towards. These questions presuppose that the querent has already done the initial work, has done the research, has prepared all the ingredients and has done all the writing. She is now at the point where the substance of her world is ready for presentation.
This phase, putting it all together, is every bit as important as the phases that focus on finding, sorting, sifting, and combining ingredients. These are clearly questions of worldbuilding, just not questions of worldstuff.
I would argue that any query of world documentation ought to be treated as we do any other question of worldbuilding, given that the question conforms to community policies in force when it was written.
You lot were writing this back in 2017, but in 2024, this would largely mean that so long as a query of documentation has clear worldbuilding context, is not about actually writing the documentation, is succinct, focused, not a brainstorming session, and doesn't require a whole infinite shopping list of things to answer, it is 100% op-topic and ought to be approached as one would answer a question of how a winged humanoid might reasonably fly.
I haven't yet reviewed the queries originally linked in this Meta question, though I believe that this more recent question of documentation is a textbook case of a good question of worldbuilding process, in specific, focusing on documentation.
