Agreed. Ideally the meaning of a tag would match its meaning in plain English, but sometimes that is not the case. Which requires mappers to have a shared understanding of what the tag “really means”. Which is all fine in general. But jn the case of crossing=marked and unmarked specifically…
… where did this meaning come from? How are the markings related to who has priority? It is not implied by the plain English meaning, and the wiki page for crossing=marked doesn’t say anything about priority. How would mappers know that the the tag value in this case should be the complete opposite of the plain English meaning?
I’m not American by the way. But it would never occur to me to tag a crossing with markings on the street as unmarked.
How so, in the case of “marked”? According to the wiki the explosive growth of “marked” was associated with its use in ID presets from 2018 to 2022.