I think there's a bright line between "content moderation" where speech and behavior is being moderated, and spam and/or bug abuse which has nothing to do with

I think there's a bright line between "content moderation" where speech and behavior is being moderated, and spam and/or bug abuse which has nothing to do with content of speech whatsoever. Rate limiting inputs is not the same as picking and choosing who is allowed to say what based on arbitrary standards of speech content.