Yeah its his, he copy & pastes as he goes to new sites :]
Because originally, only those 2 sites were going to have that guide. Like WIY said, I just copy and paste my stuff when I go to a new psp hacking site, saves me alot of time, and adds a little bit to the site, also lets people know who I am and what I can do.
I usually forget to edit that part, because I'm usually in a hurry when I'm on the net, I'm really flooded with projects right now.
Mainly, its just laziness.
But it does discourage people from re-posting it as their own