I'm curious as to your definition of thread spammers. Posting the same post from thread to thread is clearly spam. But is coming into various threads to post your opinion spam? Since the topic on this thread is Bush's poll numbers, it's hardly off-topic to discuss Bush's immigration position, since immigration reform is the leading subject lately.
Or is your definition of spam someone repeating opinions you don't want to hear?
The former. And since PKM's post and ping was about the dynamic she describes, I was reponding to that.
But I think you knew that.