I found a simple Australian anarchy server that is going for a no rules style. There is no anti cheat so people can play however they want.
It is on version 1.21.11 and the world is fresh since 01/01/2026. The player count is really small right now so it feels quiet but it could change if more people show up.
There are vote dupes and you get one voted u p e per vote and it can increase with playtime. If you want pure anarchy and you do not care about rules this one is worth a try.
EuMC is a vanilla anarchy server with a tiny community and it is made for people who want no rules at all. There is no anti cheat so it is really anything goes.
It runs on 1.12.2 but you can join on any version. The server is small with a 20 player cap for now and it might change if more people show up.
There are a couple weird issues you should know about. Some chunk related stuff can kick you if you use Meteor client. Also no fall does not work so if you are flying and try to land it can kill you.