The most useful thing you learned here that was not the answer you came for

Lounge-level thought to close on: the measure of this place is that being wrong in public here is cheap. That is a design decision and it took work.

The honest answer is that it depends, and here is what it depends on.

Something I have wondered without ever asking: is there a good reason the vocabulary in this field is so inconsistent between suppliers? Half the disagreements here start as terminology.

That is true everywhere. The reference material that gets used is the material that answers a question you have at the moment you have it, and glamour has nothing to do with it.

Community norms: if you want to discuss how the community should work (not moderation decisions, which go in Meta) the Lounge is a place for that casual discussion.

The rule of thumb is fine; the edge cases are where it earns its keep.

A digression that keeps occurring to me: the most-linked documents here are the dullest ones. Nothing gets cited like the unit-arithmetic page.

I am aware this is the third time this month I have made this point.

Since the Lounge tolerates a digression: the thing I find most interesting about this community is how much of the useful material is negative. Half the value is knowing what a document does not establish.

Happy to be the one who is wrong here if it settles the question.

Community norms: if you want to discuss how the community should work (not moderation decisions, which go in Meta) the Lounge is a place for that casual discussion.

The short answer was in the first line; everything after is the working.

Reading back through, this was answered upthread and I missed it. My fault.

Humour: light, relevant humour is welcome. Cruel humour targeting individuals or groups is not.

I would call that likely rather than established.