It might be better to cripple the site rather than kill it. If all of Mahalo's pages disappeared you can be sure they would return en masse when they found the

It might be better to cripple the site rather than kill it. If all of Mahalo's pages disappeared you can be sure they would return en masse when they found the workaround for the filter. Blocking chunks of their content might make finding the workaround harder and may ultimately force them (or any other low quality site) to up the quality - yeah, I know I am deluding myself.