It should go without saying, but I encourage debate and dissenting opinions in my blog. What I do not encourage, however, is hate speech. Racial, ethnic, sexist, and homophobic slurs will get your comments screened, pumpkins. So will any other hate speech you can think of.
And don’t try and pull that first amendment argument bullshit, either. My readers’ right to not get called hateful words supercedes your right to use them.