If you're publishing on your own website instead of a social media platform, your new Kings are your domain registrar, registry operator and ultimately ICAN itself, your hosting provider, Let's Encrypt, all the email providers you need to be able to deliver to (notably Microsoft and Google), and probably also your payments provider.
Despite what people say, the internet is not decentralized, and it's no longer possible to build a site that isn't in anybody else's kingdom.
This is mostly a good thing, if this wasn't true, somebody would have set up a site that was a safe haven for child porn, and there'd be nothing that anybody could ever do about it.
Most businesses can treat their domain name as fail-safe. If you have a .com/.org/.net, pay well in advance, and aren't doing anything that's currently illegal in the US, you're not going to lose it unless there's a dramatic political shift that's earthshattering for ~everyone.
On the other hand, social media platforms arbitrarily locking you out is a daily occurrence for tens of thousands of innocent people per day. This isn't just a hypothetical risk, it actually does happen to people and businesses all the time. Even the most law-abiding business should not build their castle in a social media platform.