I do not mean to be obtuse, but I still do not see a way to filter out the posts that have replies so that we can view only the posts without replies.
Did you super search for the previous discussion? I always think PTAV lets you do this (it should). Unanswered post search?

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In reply to Re^3: Finding posts with zero replies. by PodMaster
in thread Finding posts with zero replies. by doowah2004

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