This is by design but perhaps the design is wrong :)
When a user has edited many nodes on ways that get pulled in because they are part of a relation that intersects the defined area, those nodes are all counted towards their score.
One example I encountered was user Keith appeared as a top mapper in the Perth area, but upon closer inspection they had mainly edited lots of coastline in southern / western Australia and not all that much in the defined Perth bounding box.
mvexel
commented
3 years ago
This is by design but perhaps the design is wrong :)
When a user has edited many nodes on ways that get pulled in because they are part of a relation that intersects the defined area, those nodes are all counted towards their score.
One example I encountered was user Keith appeared as a top mapper in the Perth area, but upon closer inspection they had mainly edited lots of coastline in southern / western Australia and not all that much in the defined Perth bounding box.