We don't come close to seeing everything that gets posted to HN—there is far too much of it, so we rely on users to let us know about the worst stuff. I had no idea that flamewars were going on in this thread until someone told me about it.

When you see a comment that ought to have been moderated and hasn't been, the likeliest explanation is that we haven't seen it yet. We can't moderate what we don't see.

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