There is a "Self-managed moderation" section at the end of this article.

If you host your own instance, you can serve that kind of content. Since instance discovery is also decentralized, you can only subject your content to users who you convince to visit your instance in the first place.

If you are trying to expose the masses to perverse/extremist content and you don't have your own popular instance, you are limited by the moderation of the instance you are trying to publish to.