How can I subscribe to Daily Kos via Bloglines without seeing duplicate posts?
Bloglines works like many other readers do — any time an item changes at all — even a tiny typo that gets fixed — you’ll see it pop up again as new. There’s no workaround at the moment. Someone needs to create a RSS reader that would check how many characters changed (if less than a sentence was added or edited, ignore) or if it’s multi-user like bloglines, let people vote on whether or not an update was worth alerting every other subscriber (and if it gets enough no flags, then pull the updated item from other peoples’ feeds).