AFAIK because of the cloudflare check federation is now broken between kbin.social and the rest of the fediverse. Please somebody correct me if I'm wrong.
If you search https://browse.feddit.de/, there are some small alternatives you can start to post. (I've searched for the term: "lord")
I've fond these: https://midwest.social/c/lotrmemes https://lemmy.ml/c/lotr https://lemmy.ml/c/lotr
@darius
@lemmy.world