HDK edit
I'm just a guy who's created a user account on wikipedia. I wanted HDK but was refused by the wiki gods due to another user already having a similar name.
So I have reverted to an alterntive "HDKilla"
The handle HDK has been in use by myself since shortly after the turn of the millennium. The name and relative immaturity of the internet at that time made it quite a unique little tag.
Anyway, time goes on and other people begin to use it, and so it goes.
I originally was given the handle HDK by a computer technician friend of mine. He gave me the name due to my innate ability to kill a hard drive by just touching it.
Hence HDK. Hard Drive Killa...
It was mostly a joke and sublime coincidence that his hard drives died on my watch.
HDK has many references throughout the internet these days. I think one was an early MS Dos virus.