All hacked clients are allowed. If you don't have a hacked client, well, good luck.
If you want to destroy, you can destroy. Just be prepared to get destroyed yourself.
We don't allow access to the Nether Roof. This is a one-way ticket to a full disk.
You don't like lag, we don't like lag. Don't do anything that causes a bunch of lag.
No one likes a bunch of spam but we don't police it. You may get vote kicked though.