I don't think unmoderated comments are worth reading these days, to be honest. All of the message boards I frequent, including this one, are moderated, and are vastly better for it.
They all vary in how much they moderate, and some of them allow a lot more leeway than others, but they all weed out the worst trolls. The sites still have trolls, but they have to do their thing without threats or real unpleasant name calling.
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