Heh. Years ago I worked at a company that was a little tight on cash. Somebody asked how much something cost and I replied that it was like 800 yak hooves. Nobody had any yak hooves so we couldn't buy it. Problem solved.
Later I began to pay bonuses in yak hooves which could be traded for beer and other sundry items. The exchange rate was always a little sketchy depending on the time of night, how much I'd had to drink, etc.
The cofounder of the site and one of my first authors were both part of the underground yak hoof economy. So the yak meme just followed us. It just seemed like a good way to make the site less stuffy.
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