I might be the only person subscribed to this forum via RSS, but I've noticed for a while that some posts appear multiple times (as a mod you think you might have to remove the duplicate one), but they link to the same post.
Anyway, one of my threads appeared there twice today, so now I know what the cause is. Whenever someone edits the first post in their thread, it makes the thread re-appear in the RSS feed. Can you fix this Diablo?