Celebrity achievement

This is a proposal made on 2009-09-29. Please leave comments and suggestions on Talk:Celebrity achievement, indicating whether you:

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See Proposed achievements for more information on this process.

Yerushalmi and his wife earned the Celebrity Geohash achievement by meeting a guy in a monkey suit on the way to the (31, 34) geohash on 2009-08-16.

• The geohasher must have met a celebrity on the way to or from the hashpoint
• The celebrity in question must meet a certain minimum definition of fame (I'm open to suggestions of how to define it. Perhaps a page on Wikipedia about them? That might be too broad. Though it would neatly cover the "who gives a damn about movie stars, I want to meet Cory Doctorow" attitude most of us share.)
• The amount of contact needs to be defined as well. Is it enough if you spot them through a crowd? Say hi? Shake hands? I'd assume "going to a concert before going to the hashpoint" shouldn't count.