Is it implemented using some ActionFilter ?

Or does it persist the post first and if a captcha is required and successful, then flag it to be visible ?

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If you could make it more generic, this would belong on stackoverflow.com =) –  jmfsg Jul 27 '09 at 15:41
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@Juan: And if he rewrote it to ask about Must Have method of doing it, he could put it on SU. –  Hilarious Comedy Pesto Jul 27 '09 at 15:43
    
The post isn't persisted if you never answer the captcha. –  Ian Elliott Jul 27 '09 at 16:46
    
The question is how ???..............The part that's it isn't persisted if the captcha is not/incorrect is fine and kinda implicit/intuitive –  Kumar Jul 28 '09 at 2:37
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