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A comment on Pinboard - antisocial bookmarking. Parent comment

Re:Pinboard - antisocial bookmarking by jsb on Monday July 13, 2009 @10:02PM (#702952)
According to the website, the fee is (number of users * 0.001). Since the current fee is $2.91, the number of people who've signed up is around 2,910. Seems like at least a few people willing to throw in a few bucks to give it a shot. It'll be interesting to see what will happen to growth as the rate goes up and up.
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Re:Pinboard - antisocial bookmarking by mediaman on Tuesday July 14, 2009 @01:05AM (#703134)
It seems that the fee should not be linear to the number of users.

Make it log(x) or something.

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Re:Pinboard - antisocial bookmarking by dasil003 on Monday July 13, 2009 @11:28PM (#703047)
The incentive for scalping will increase.
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Re:Pinboard - antisocial bookmarking by wooby on Tuesday July 14, 2009 @01:23AM (#703148)
How much they've made so far, with scala:

  scala> def income(n_users:Int) = (1 to n_users) map(i => (i-1)*.001) reduceLeft(_+_)
 income: (Int)Double

  scala> income(2901)
 res0: Double = 4206.45
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Re:Pinboard - antisocial bookmarking by swolchok on Tuesday July 14, 2009 @03:39AM (#703275)
You need to round the intermediate values down like they seem to be doing.
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