I agree with John that what looks "mostly" (largely? — the dataset is large and I certainly didn't examine every building in a few minutes) wrong here is that there ARE buildings where satellite imagery shows that there ARE buildings, however they are "skewed" improperly with improper rotation orientation.
That's not a terrible error, and yes, correcting those would be a great deal of effort with relatively small benefit in correctness for the map (in my opinion). However, "better is better," so spend your time accordingly. SteveA California _______________________________________________ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk