What I've noticed, and you didn't include it in your list of possible causes, is that the number of posts by "anonymous monks" seems to be up. I, for one, am less likely to vote on an anonymous post, even if it is useful. So maybe the anonymous postings are "diluting" the results.
In reply to Re: $NORM is dropping! Should we care?
by zentara
in thread $NORM is dropping! Should we care?
by husker
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