What B&N did was to *maxmise* the number of script kiddies that know the techniques in the article, This might not be a good thing because it makes them more dangerous.
While I do not have a MSc in penetration testing I do know such courses exist. Their graduates probably know a lot more than I do in this area, and I already knew about metasploit, etterttcap and most of the other tools.
LWN published a much more "dangerous" article which included demonstration of "pass the hash", which works against most windows servers. I suspect a lot fewer script kiddies read it.