I can't say I can trust you. Initially, you read the rules and then went right out and griefed on this server. Your excuse? You were not used to servers actually enforcing the rules...
You were banned for this, and claimed you had learned to behave better. You posted a plea and were allowed to return.
Then, you return and you break another very important rule. You download and install xray, and cheat to take diamonds and ores that legit players deserved to find.
I'm not really sure why you believe I should trust you this time. I am going to allow you back this final time- but not simply because you've asked. Because you have friends here who miss you.
Your diamonds have been removed and your money has been reset. We will be paying attention.
If this happens again you'll be banned from the server and the forum.
You have been unbanned.