I'm using the RSS feeds for several tags so I can keep up to date on them. Occasionally, I get an entry that shows up and the question was asked several months ago.  If I look at the RSS feed the entry has an updated date but it doesn't appear that anything has changed on the page for the question:

    <published>2010-05-24T12:30:25Z</published>
    <updated>2011-02-01T19:18:34Z</updated>

This is the feed I'm looking at: http://serverfault.com/feeds/tag/sharepoint and this is the question that showed up this afternoon: http://serverfault.com/questions/144825/recyle-application-pool-warm-up-scripts-performance-tuning-in-sharepoint-wcm-site .

Has anyone else had this problem and know why it's happening.  It's just a minor annoyance but it's strange.