I was the one who investigated the grief report made about the farm, at the time I arrived there was no one at the location and there were 5 floors of netherwarts missing, I understand if you were just there farming but you need to discuss with the owners before you can use other user's things. You may discuss with the owner of the town/farm as to their terms of the use of the farm. I will be issuing a 6 hour temp-ban and expect you to review our rules on griefing that can be found on our wiki here:
http://www.ecocitycraft.com/wiki/index.php?title=Server_Rules

And more specifically this rule we have in place against griefing in the main world:

Locked, user temp-banned 6 hours.