I don't tend to really pay as much attention to my feed as I should but I've noticed a few stories lately being added that I'm sure were added already. Some that I myself added here. Usually in the past if someone tries to add a story to a group without knowing its already there, a little notice is given to the submitter or a little check mark would be shown near that group so the person would know that the story already exists there.
To those who actually do pay attention to the update feed of the different groups their in, do any of you notice this to?

I'm not sure about in general, but I think some of that may be stories getting added to multiple folders within a group. For instance, "In Their Highnesses' Clandestine Corps" was in the general folder for here, but not the Action/Adventure one.