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As for ideological battle generally—the site guidelines make a distinction between that and curious conversation, which is what we want here. Not only are they not the same, they're not compatible—for the same reason that having a tank battle and playing frisbee in the park are not compatible, or that boxing and dancing aren't.
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Many topics here have ideological and political overlap—. That's generally ok, as long as there's a basis for substantive discussion (pure flamebait articles, for example, are off topic).
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But the question is how people go about talking about them. If they're just trying to smite enemies and using the usual weapons (snark, name-calling, etc.) to do it, that's clearly against the site guidelines and not what we want here.