[racket-dev] spam trac tickets

can you turn these captcha expressions into small arithmetic expressions
that people know they need to compute and the spammers don't see? 


On Mar 22, 2011, at 11:28 PM, Robby Findler wrote:

> Looks like the spammers have found a way thru google's captcha thing.
> There were just three spam tickets now and two earlier today and a few
> yesterday, iirc.
> 
> Should I worry about that?
> 
> Robby
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