I don't think you have grasped the concept of the server....In case you didn't know, Zedwork is a friendly server with community building and cooperation in mind. We ban griefers for this reason. Also new players who have built a project but may not have enough claimblocks to cover it would be sad to get griefed i think. Teamwork is encouraged aswell as player interaction with an end to getting better at building. Griefing would stunt this process and that is why we don't allow griefers on the server.
You probably know all this already, this was just an fyi to remind you of our values. I hope that you can embrace these values and get involved in what we do best here on Zedwork