I had to read through a couple of times, and It's still incredibly unclear but what I get from it is that they against publishing security holes OR against the people exploiting the holes, maybe both. They say that the security companies are publishing the security holes so that people will exploit them, in turn creating a need for their security programs. Although I don't know anything about this anti-sec movement I think this is specific to the hacking of image shack and just one of their agenda. Something like,
"we hacked this and caused you inconvenience because computer security companies are publishing security holes for profit, also BAD PEOPLE [guys exploiting the security holes] STOP BEING BAD"
I'm probably way off though.