The index is divided into folders, and in each folder are posts. Folders show up as new/unread material
when there is new/unread material (of course), but say if I chose to never check a post, eventually that post would no
longer count "unread". Or at least that's how it used to be.
But now they do, it seems. So because I chose not to read certain posts 2 months ago, that folder always shows up as having new/unread material for me.
So now all folders always show up as new/unread material for me, even if nothing new has been posted since I last checked in.
So it's just a mild annoyance not knowing which folders actually have new material, and which just have old new

These days I just look at the dates instead.
Am I doing something wrong? Is there some switch that can be flipped somewhere?
Not worth the trouble if it's a big deal.
Thanks for all.