The instance seems to be mostly right wing trolls. I know defederating is unpopular but I don't think much is to be lost in this case and it can save the mods some headaches.
Edit: the response on exploding-heads.com to my reporting of transphobia. Courtesy of the "second in command"
KBIN.SOCIAL users, this is the post URL: https://kbin.social/m/main@sh.itjust.works/t/39264/Hey-could-we-defederate-with-exploding-heads-com#comments
It means it is on sh.itjust.works instance! It is NOT kbin.social post, even if you can see it from your instance! Speak to your own kbin.social admin if you wish to defederate from exploding-heads!
It would be a nice addition to have the ability to create instance-only communities specifically for these types of topics. That could probably be done with an automod that just deletes/messages anyone who tries to post on that community.