It’s allegedly Karl Rove training wingnuts to be attack dogs on liberal blogs. Not sure if it’s true, but it’s a good description of the dynamic. The thing is, any liberal blogger or reader who’s been around just doesn’t talk to trolls, so it’s unlikely to work.
I don’t care what they think. I rarely respond to posts anyway, since we all have Mr. Google at our disposal and I figure if someone really wanted to know, they’d ask him.