He asked if I wanted to do something before I left. I said I will troll with my hacks for a bit, just for some lols before leaving.
Thats the problem right there. You didn't have to hack for the "lols" you didn't have to defend yourself for leaving, you didn't have to make threats, ALL you had to do was leave and not make a big deal out of it. (as in didn't need to tell anyone, just leave)
and kids being stupid. So I thought about ddosing the servers.
"hey these people are bugging me so I'm going to call them stupid kids and make threats" Sorry but that just makes you look childish.
as to you being unban i'm saying no, what do you think "permanent" means? it doesn't mean you're allow to come back after (x)months. this is why you should be on your best behavior at all times.