Since comments/posts are not deleted from an instance, is there a tool for editing posts and comments to null and delete them?
Since comments/posts are not deleted from an instance, is there a tool for editing posts and comments to null and delete them?
no idea, you should search issues on github.
Anyway comments are replicated across all instances, so nobody stops someone from running a modified instance that does not abide to the comment deletion request. Same for posts, idk about images.
you should consider everything that get published public forever.