Share 'Spam detection for social networks: best practices (Part 1)'
Provide mandatory questions on sign-up, some requiring typing actual text. Example: What is your favorite data mining software?
Do not allow new members to use your social network e-mail functionality right away. Grant email access after 48 or 72 hours.
Do not allow members to reach more than 20 other members per day, via email.
Captcha on sign-up form.
Have new members confirm their email addr…
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