I found AnarchyMC and it is a straight up anarchy server with no rules. There is no anti cheat so it is a rough place where anything can happen.
The map has not been reset and it is about 1.5 years old. Spawn is already pretty griefed and it has that lived in history feel.
If you want a long running world where you can do whatever you want then this server is basically that.
AnarchyMC No Rules No Resets
GG.MINEWIND.NET New Server IPChaos SMP No Rules Anarchy
This is a server for people who want total chaos and zero rules. It is an anarchy world where freedom is everything and nothing is safe at all. You can join with versions from 1.7 up to 1.21.X so pretty much any client works.
Hacking is fully allowed and actually expected. Everyone is trying to get stronger and more broken so it turns into a big arms race. Griefing is also totally fine so the map gets destroyed over and over. PvP is always on and you can get killed anywhere so trusting other players is a really bad idea.
There are a few commands that make life a little less painful. You can use sethome to mark places where you stash your stuff. You can use tpa if you want to try meeting other players but it is always risky. There is also back which lets you teleport once to your last death spot so you can try to grab your gear before someone else does.
The whole server feels harsh and unforgiving. It is for people who are tired of normal rules and want pure anarchy where only the strongest survive.GG.MINEWIND.NET New Server IP