I personally support the defederation of communities that allow that type of pornography, especially the types that advertise themselves for it. Beyond not liking it when animated CSAM appears in my feed when I sort by new, I think that communities built around those types of porn invite multiple forms of toxicity that can rot away an instance from the inside. While I think defederation should be used sparingly, I still think it’s a useful tool to remove bad elements from our community and in this case, I think its use would be appropriate.