I just installed
[2.0.20] registration disable website signature
and the mod that keeps unregistered users off the memberlist.
We were getting an overwhelming number of new members in the memberlist who turned out to be unregistered so these mods made that problem fairly manageable.
Unfortunately a funny thing happened.
We were only getting a few posting spammers a month before the mods. Now the member list is much more manageable but we are getting a couple spammers a day who register and post.
What would you guys recomend as the next layer of defense?
I just saw spamwords. I will try that now.
For those spammers that are automated, a better captcha in the visual confirmation during registration should help. There is a mod called "Better Captcha" somewhere.
For those who are human, have a strong stated policy on your board that spammers will be dealt with harshly, and then when someone spams so many times (maybe even just once), delete their account and ban their member ID and IP.
If you don't want to do all the continual work that this entails, perhaps write code that prevents or limits the number of links a newly registered user can put into a post. (I already limit links for guest posters to a public forum, but haven't make the jump to apply to newly registered users in non-public forums yet)
I have personally shied away from using something like spamwords, as I don't want to spend the time trying to stay on top of all the spamwords these inventive cretins are using. On Edit: I also fear false positives with something like this.