I found a vanilla anarchy server that runs on Minecraft 1.3.2. It is the kind of place where there are no rules and you can do whatever you want.
They do not patch exploits and they only use official jar files. The server can update every week and the next version is decided by a vote.
They are going through every official server version and that includes snapshots and even the april fools ones.
VANILLA ANARCHY ON PURE OLD VERSIONS
GG.MINEWIND.NET New Server IPPure Vanilla Snapshot Chaos Server
This server is just straight vanilla and it feels kind of wild.
They only use the official jar files and they do not patch exploits or add anything extra. It is basically Minecraft how it comes from Mojang.
The server runs on snapshot 12w30b right now. They plan to go through every official server version including snapshots and even the April Fools ones.
The community votes on what version to run next and they can update every week based on that. There are no written rules in the post so it sounds like anything goes as long as the game allows it.
If you want a pure vanilla experience with all the weird bugs and crazy old versions this server is made for that.GG.MINEWIND.NET New Server IP