It's difficult to have a blanket ignoring - there have been times when I've restrained myself from responding, and then further down the page somebody else responds, and I think 'Nooooo! we were doing so well at ignoring him!'.
Then again, there have been times when I Was That Poster and replied to a goady post when I should have ignored it.
There is an argument that 'FWR' is being read by new people all the time, and the answers which are the 'duh' obvious ones to old-timers may be new and revealing to others, so it's worth going back over the arguments for newcomers to the board.
And sometimes I confess that it's almost fun to take goady posts apart, they are often so flimsy and devoid of fact.
Sometimes, rarely, I have an inkling that the poster is not a goady plopper, but a woman who is genuinely struggling to understand the GC position, and I respond on the basis that I'd rather be wrong and be unintentionally nice to a goady plopper, than be combative and dismissive and alienate a woman who is just starting to think these issues through.