Oh I see.
Yes, if it’s something that you already know, it’s just there being annoying.
I think that maybe the best alternative to this would be to have an option where the user could manually unpin topics. For example if there are 2 pinned topics, but only 1 annoys the user, they could unpin that one, but leave the other one intact.
Maybe one is more like an announcement, but the other one contains useful information that is good to revisit from time to time?
But at least I understand it now. Thank you!