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There are perfectly civil ways of expressing pro-choice views, feminist takes on contraceptive issues, and other feminist positions in general. Had Marcotte taken that path there would have been no real fault for Donahue to latch onto. (Not that this would have necessarily stopped him from trying, admittedly, but it would have gotten no traction.)
The blogosphere doesn't have to be all prim and proper, but nor should we normalize vulgarity in the name of being "raucous and common".