I was just noticing that myself. I'm also on ES, and it seemed to stop about 3 hours ago (3:30 pm central US), cause the post I wrote then never showed up.
The number of posts I've seen on Usenet today (checking several times during the day) has seemed pretty normal. I don't use Eternal September, so that sounds like where the problem has been for you and kgbooklog.
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Date: 2011-12-10 01:41 am (UTC)no subject
Date: 2011-12-10 02:21 am (UTC)no subject
Date: 2011-12-10 04:57 am (UTC)no subject
Date: 2011-12-13 10:35 pm (UTC)no subject
Date: 2011-12-13 10:52 pm (UTC)