Every blog has its rules, and these are ours. If you break them, don't be surprised if we block your comments.
First things first: If you can't be polite, don't say it. We don't want to stifle discussion, and we're not always going to agree with each other. And of course the whole point of this blog is that people care deeply about, and can have spirited discussions about, popular culture. Still, please try to disagree without being disagreeable. Focus your remarks on positions, not personalities. No name-calling, slander, comments about someone's mother, comparisons to notorious dictators — you get the idea. And under no circumstances should you post anything that could be taken as threatening, harassing, sexist or racist.