Britian monarch are pointless
British monarchy held too much subversive power!
Pointless, as in, without a point. Power without a point (for having that power). Let's take a fictitious example, and we'll see if you can see the problem.
Let's say we have a version of the CFC forums where there's an administrator position that can never be revoked, demoted, or deleted, even by other admins. Let's call them Root. Now, if someone is Root, they can technically do pretty much anything they want and people can do literally nothing in return. There is no way of enforcing any accountability.
Now, hilariously, and completely by accident (/s) this is actually generally how forums work at a technical level. It's how most things like forums work. You have one root user, and everyone else on top of that. Not all systems let you duplicate root access, even amongst other "administrators". Now, generally, root access is considered to be something that nobody should have, without good reason. Most stories you hear about on the Internet of people gaining root access to something or other is normally very bad news for that something or other. Because root access is so powerful - you're basically relying on the person having those powers using them in a morally-positive way.
But imagine Root sees one of your posts, and bans you for it. No particular reason, they just ban you. Or me. Or whoever. There's no
point to the bannings, they just happen. You're stuffed.
This is why moderation, particularly on large, successful sites have moderation teams of more than one person. Everyone answers to a group, and often you have administrators that are technical, and administrators that handle the community itself (at least, this is how it's worked in the past for other sites I've been on - I'm just trying to explain it this way because I've been involved in running a bunch of sites in the past 10 - 15 years).
And you're here going "this is fine

" because you like Root. This is how silly your argument is. You are being fundamentally anti-democratic by going "unaccountable power is good actually because accountable power can sometimes rest in the hands of idiots".