This question is usually asked in response to proposals to moderate
    existing high-traffic newsgroups, in hope of avoiding moderation.

    Posters could use more descriptive Subject: lines, and change
    Subject: lines in their followups to better describe a changing
    subject, or use tags or keywords in Subject: lines, but this is
    usually more effective in a low-volume newsgroup with a strong
    sense of community, and less effective in higher-volume newsgroups
    that have a greater proportion of new posters, or of people who
    can not or will not change subject lines, or for people who use news
    software that ignores the References: header, and thus find it harder
    to follow discussion threads across a change in Subject:.

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