So I just had to delete my entire friend list and add everybody
again afterwards. Why? Because I needed to find a single
notification (about my one year anniversary on PH) in this huge sea
of notifications. That's simply impossible with so many feeds, even
though that anniversary notification was only 11 days old. That's
why I suggest there's a little icon that you can enable/disable
(like under Misc. Settings) that hides/shows feeds from your
friends. Basically makes it much easier to find a certain feed.
You can filter notifications on the right side. The anniversary
notification is either "Other" or "Gifts". Select these filters and
click a couple of times on "Load more". Ét voila, much easier to
find a specific notification.