Recently the problem is getting worse with customers setting up forums and abandoning them, not checking on them or installing the updates.
Eventually the captchas on these old forums get cracked and spam floods in, not email spam, just posting ads on the forums, I assume to build incoming links in google.
The volume of spam is very large and quickly and begins to use alot of CPU, mysql gets very slow.
Does anyone know of an automated way on the server side to detect and block this type of spam?
I do not want to have to suspend customer accounts or force them to upgrade, if they abandon the site but are still paying for it, I would rather not put them in a situation where they either forced to do updates or cancel their accounts.
Check out stopforumspam.com, they have plugins for most popular forum apps.
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