I thought this guy(gal?) makes the most sense.

i have met some good friends that are better educated on hacking then those that go to universities(nothing against the integrity of universities per se). I think its mostly due to there is the "unknowing" of certain problems and angles to hack at, so they learn about a systems vulnerabilities at all angles instead of a teacher or book lecturing a long list of ways (that tend to not burn into the memory) with the home-grown security skills you get the constant hands on learning and desensitisation of failure and patience on your belt. Of course just my view point and experience.