PlatypusNinja comments on Shut Up and Divide? - Less Wrong

60 Post author: Wei_Dai 09 February 2010 08:09PM

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Comment author: Kevin 10 February 2010 12:14:28AM *  32 points [-]

:) Sorry.

In 2006, Craigslist's CEO Jim Buckmaster said that if enough users told them to "raise revenue and plow it into charity" that they would consider doing it. (source: http://blogs.zdnet.com/BTL/?p=4082 ) They really do listen to their users and the reason there is no advertising on Craigslist is that no one is asking for it.

A single banner ad on Craigslist would raise at least one billion for charity over five years. They could put a large "X" next to the ad, allowing you to permanently close it. There seems to be little objection to this idea. The optional banner is harmless, and a billion dollars could be enough to dramatically improve the lives of millions, save very real people from lifetimes of torture or slavery, or make a serious impact in the causes we take seriously around here. As a moral calculus, the decision is a no brainer. So we just need a critical mass of Craigslist users telling Jim that we need a banner ad on Craigslist. Per a somewhat recent email to Craig, they are still receptive to this idea if the users suggest it.

The numbers involved are a little insane. Fifty thousand people should count as critical mass, which means each person could effectively cause $20,000 to be generated out of nowhere and donated to charity. My mistake last time was doing it as a Facebook group rather than a Facebook fan page, where the more useful viral functions have moved. This time I would also drop the money on advertising to get an easy initial critical mass.

Comment author: PlatypusNinja 10 February 2010 05:41:28AM *  2 points [-]

each person could effectively cause $20,000 to be generated out of nowhere

As a rationalist, when you see a strange number like this, you have to ask yourself: Did I really just discover a way to make lots of money very efficiently? Or could it be that there was a mistake in my arithmetic somewhere?

That one billion dollars is not being generated out of nowhere. It is being generated as payment for ad clicks.
Let's check your assumptions: How much money will the average user generate from banner ad clicks in five years? How many users does Craigslist have? What fraction of those users would have to request banner ads, for Craigslist to add them?

My completely uneducated guess is 100$, ten million, and 50%. This matches your "generate one billion dollars" number but suggests that critical mass would be five million rather than fifty thousand. Note, also, that Facebook users are not necessarily Craigslist users.

I would be interested to hear what numbers you are using. Mine could easily be wrong.