I agree that it isn't the best idea in the world, but I know these people and it's all they listen to. You're right, they're just kids and have no idea what they're dealing with, but they don't listen to 'adult' threats and simply put, they know we can't do anything about it.
On the other hand tho, I actually gained access to one of the 'attackers' phone numbers, which has ended with him claiming to stop his 'attacks', which ultimately ended up him admitting that the entire time and hadn't attacked the website, he just claimed he did.
The other person in question really won't listen to anyone or anything and there seems to be no way of getting to him through 'the law'. I've done my research on this current issue and I've learnt a lot about this person, I hope he is actually reading my post right now.
Whatever it takes, I personally won't let mircscripts.org die. I've seen hundreds of people worried about the state of the website and that community cannot be lost otherwise a huge hole would start to appear in the mIRC community.
I don't want to resort to those tatics, and I really will try every avenue to stop the attacker before even attempting it; but I don't think anything is going to work.
You cannot tell someone to stop something until you start speaking their language, and unfortuntely the only language they understand revolves around DoS.