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We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).

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Comment: require a bit of human intuition (Score 1) 183

by cpearson (#26252423) Attached to: Smart Spam Filtering For Forums and Blogs?
Forums and blogs are susceptible to post spam because most are large opensource or commercial scripts. The fact that there are thousands identical scripts makes them a prime target to spammers. The trick to prevent forum spam is to confuse the spam bots. Most all bots will fail to register a user if given something unexpected. For forums I administer, I wrote a vbulletin mod that requires a bit of human intuition to solve (not much mind you) such as have a text input field that must remain blank. This simple measure has prevented nearly 99% of forum post spam.

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