I think what he means is that Anti-Cheaters are sometimes ignorant of who cheat makers are and the fact that they arent people with no life, job family, who spend 24 hours a day making cheats. They probably program as part of their job and it is just something for them to do. They would probably help code anti cheats if asked in a nice way and weren't looked down. There is a little story involving valve with regards to this.
Also over a year ago i sent EB some information regarding how opengl hacks functioned, from which i never got a reply, and over 6 months later they added it to detection in pb and shit loads of opengl hacks got wiped out.