Lifehacker posted a question about duplicate entries in an RSS feed so I looked into it, and the feed in question attaches a different tracking id to the item’s link and guid, each time the feed is fetched.
Brilliant! Google Reader assumes it’s a new entry and you get duplicates.
I’m using SharpReader and it seems to detect stuff like that (that is: it doesn’t trust the RSS data to be correct)… I’m not sure how I feel about that, but at least I’m not getting duplicates.
(via Scripting News)