I think I've asked about this before, but the Game Announcements & Troubleshooting subforum is very cluttered with pins about maintenance and issues that are no longer valid.
It's now at a point where the entire first page except for one thread is a pinned message. Of those 14 pins, 11 are for old maintenance windows or now-resolved issues. Of the other 3, only one is still actually useful - the PS5 FAQ.
I think it would make sense to unpin these messages soon after they are no longer needed.