I have a followup question: There is almost a thousand backcountry=yes without tourism=camp_site, some seem to be clearly wrong, like benches in the middle of cities (people wanted to say they has a backrest or something?) or they seem to be indicating that a node is in the wilderness (like a gorge with the backcountry tag). Is it considered an ok practice to go through them one by one and where it clearly seems wrong, remove the tag (and where it is a campsite, add tourism=camp_site) even if I have never been there? Of course, if I would bein doubt, I would keep the things as they are.
They are listed here: overpass turbo
Some time ago, I mapped these campsites just with backcountry=yes and wanted to improve my old edits, but now I see it is a larger inconsistency.