He is trying to stop violent video games like GTA. I've never played GTA, so I have no opinion on his efforts, but...
Jack went on national TV and said he would pay anyone $10,000 to make a video game modelled on him. A group of game mod'ers changed GTA so you played the role of Jack and go around killing violent video game makers. They demanded their cash, and Jack renigged:
Penny Arcade had the nerve to mock Jack over all this:
And now Jack is trying to get the Seattle Police to raid P.A., and arrest them:
I am rapidly forming the opinion that Jack is a complete and total smeg head.