collective nouns; zero points?

http://groups.google.com/group/alt.usage.english/browse_thread/thread/abf19ab68141134d#

http://www.britishcouncil.org/learnenglish-central-grammar-collective-nouns.htm

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zero points?
http://groups.google.com/group/alt.usage.english/browse_thread/thread/68ae65d3d0323c38#