All my own experience and observations also suggest that Jon did an excellent job on this and is likely the first person to ever do it well with crowd-sourcing.

All my own experience and observations also suggest that Jon did an excellent job on this and is likely the first person to ever do it well with crowd-sourcing. In the past I have seen similar quality of results with hand-picked experts (image quality people, photographers etc.), but not with volunteers or crowd-sourcing.