If finding the "right" or "wrong" people were so easy, you could go to the circus and find an amazing hacker community. The reason people go to Defcon etc is to be in an environment where the chances of running into the right people are higher. Everyone has a limited amount of time to expend, so they choose the environment which facilitates what they wish to seek out. Saying that he was hanging with the wrong people was glib and not helpful.