Drupal 7 comments spam with Captcha installed
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Confirming context menu entries via Enter when entering comments triggers comment to be posted
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php preg_replace comment blocks
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There is by now a captcha-problem
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How to prevent mail from our website going into spam mail of users?
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Are comments safely hidden once the document is compiled?
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Add optional box for spam flags letting you say why you think it's spam
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CAPTCHAs are intermittently blocking CDN content
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Obtaining text of spam/offensive posts
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Should spam posts be edited?
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CAPTCHA not displaying on "Human verification"
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How to stop people from using my domain to send spam?
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Commenting Regular Expressions
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How do you type a single backslash, code-formatted, in a comment?
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MySQL adds broken comment script after each line
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Thousands of itty bitty comments that break the 15 character minimum rule