Discord has expanded its Hateful Conduct Policy to explicitly include prohibitions against misgendering and deadnaming in a policy update. Accompanying this policy update, Discord has also implemented a comprehensive warning system to enforce these guidelines effectively.
Kbin.social is a very poorly moderated Server, so the worst of the worst users tend to congregate there, and it's a general purpose instance which is the face of Kbin so many instances will choose not to defederate it which would hurt the Kbin project.