There are bugs everywhere. There are even some errors in OpenStreetMap
data. OpenStreetBugs is a site that allow folks to quickly report a
problem with or question about specific OSM data.
http://openstreetbugs.schokokeks.org/ Have a look at OpenStreetBugs
near you and help clear some of the existing bugs by helping the
reporter with a tagging problem, or visiting the site for a quick
survey and re-tagging.
