He also did this to another website about girls who suffered thru annorexia, using an index.html infront of a index.php. Websites look for index.htm* first before any other index type, so it'll automaticly go there first. Looks like he's part of a group of hackers who go around hitting random websites for fun. Of course they never do anything that would be cool. Like take down Microsoft. Instead they spend most of their time hitting websites that are lowbrow. Pengo, one of the guys he listed, took down a porno site. I've determined CL Killer is a polish video game player and a member of the NWO clan. Clans are basicly teams (hence NWOTeam). They look to be Eastern Eurpopean, since their website is German. I assume it wasn't a deliberate target. He probably doesn't even know what ShopTalkForums is.
These are the worst kind of hackers. They get in, mess stuff up, and leave. Why? Cause they think they're funny.