Oh boy, don't get me started on kbin. Soooo much spam. About 90% of our spam reports (for actual spam) are for kbin.social posts, and I presume the reports don't federate to kbin so I just remove it from our view and then it stays on kbin 🙁
Seriously if you have a suggestion I'd love to hear it. There are too many thoughtful kbin participants to consider defederation. But oh boy is the spam annoying.