Most commenters at my websites are fine. However, now and then, someone posts one okay comment (which I approve) and then follows with dozens of inane comments.
They aren't using words on my spam list. They aren't total nonsense; they do specifically reference the content of my posts. The comments aren't linking to any sites. I suspect they're comments from lonely readers who just want to feel important with dozens of silly and/or inflammatory comments.
I hate having to manually delete those comments, but the current alternative is to manually approve every comment. The latter is a huge task for my larger sites.
Is there a plugin or some tweak that enables me to say, "Don't auto-approve comments until the poster has 5 approved comments"?
I'm using the current WP (2.7.x).