My sons and my wifes forum were getting flooded by spammers. My sons forum runs SMF, my wifes forum uses VB.
After I installed recapthca on both forums, the spam stopped.
Both forums were getting around 5 spammers a day signing up. 2 weeks later, not a single spammer has gotten through. But recapthca only works on bots. But then again, its impossible to keep human spammers out.
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