Turtle, personal responsibility is one of the cornerstones of the conservative philosophy. It would seem a contradiction to advocate posting anonomously.
Highway Star is correct: taking responsibility for your words and actions, is a mantra of conservatives, and Republicans, along with being the right thing to do. In my opinion, it is cowardice to feel the need to hide your identity. If you aren't willing to admit to it, you shouldn't do it, or say it.