AFAIK you don’t have to be manually approved to post here - because of how federation works, if you use an instance that is being federated with that doesn’t require approval, you’ll be able to post this - and if I’m not mistaken, because this is the big part, you can always host your own private instance that will automatically be federated with and post whatever you want, unless (and until) other instances (or communities) take offense and decide to block you from their own (privately hosted) services.