Hi
as I am absolutely unfamiliar with tagging practices in Japan I'm rather curious as to why you deleted so many tags that seem to be of some kind of value to our japanese community. Like this highway (https://www.openstreetmap.org/way/124321937/history) where you deleted all tags with the "yh:" prefix. 
If there is a valid reason, that's fine. But like I said, I'm curious and would like to know why

cheers
silversurfer83
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