How they worked out read & blue (and yellow)
"Blue points on the map are pictures taken by locals (people who have taken pictures in this city dated over a range of a month or more).
Red points are pictures taken by tourists (people who seem to be a local of a different city and who took pictures in this city for less than a month).
Yellow points are pictures where it can't be determined whether or not the photographer was a tourist (because they haven't taken pictures anywhere for over a month). They are probably tourists but might just not post many pictures at all."
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Ghoti Fingers, Thu 8 Jul 2010, 22:02,
Reply)
Ah yeah
Suppose I probably should have paid attention to the text, really.
(, Thu 8 Jul 2010, 22:10, Reply)