Thanks, that’s very cool. It was Geodesk that inspired me to make this list, because it’s so easy to iterate over features and calculate their area.
I did the above just for fun but if we find any systematic errors that are easy to correct from aerial imagery, then we could create Maproulette challenges similar to how TomTom does it for unusually small features.
Good idea, unfortunately I can’t create such a permanent link programmatically because I don’t have the object version number. They get thrown out when the planet files are converted into GOL files for use with Geodesk.