When Programmeroo got launched, initially the decision wasn’t to use CAPTCHAs on any forms. Because, let’s face it, CAPTCHAs are still annoying and have a huge effect on user experience. Another reason was to get to know the spammers better, find out where they’re coming from and identify their patterns beforehand. So it’s no surprise that soon enough, the contact form started getting a lot of spam messages. That’s where the fun began and the rest is the story of how we went from a few spams a day to almost none by using a few simple techniques without any usability impact on the end user.

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