You can minimize the effects of automated spam by employing the use of a CAPTCHA. While Nitrogen's postback mechanism itself helps to minimize automated POST-based spam, more aggressive Javascript enabled bots or bots written targetting Nitrogen-based sites.
For this, you can integrate a Recaptcha element into your application's postbacks. You just need to add a #recaptcha{} element and a recaptcha_event/2 function to your page, and you're ready to go.
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