I wish there was a wiki here, or a better way to keep "long running" information. I can pin posts, but that's not always the best, and it feels like "This post is more important than everything else". Maybe I should spin one up sometime
Sidebar links are arguably better anyway. Pinned posts don't always federate that way beyond the instance of the mod doing it. There are so many quirky things about running and moderating federated communities on the current version of Lemmy.
Try pinning something and then checking it from another instance. My experience has been very inconsistent, especially when using an account on a different instance than the community is on.
Linked posts are crap, because they link to a specific instance and you cannot participate unless you are on that instance or search the /c for the topic on your home instance yourself. At least i have not found a way to link to posts in a way that keeps you on your instance like with linking (distant) communities.