From the site:
Backro Nym
From the JargonFile entry http://catb.org/~esr/jargon/html/B/backronym.html :

[portmanteau of back + acronym] A word interpreted as an acronym that was not originally so intended. This is a special case of what linguists call back formation. Examples are given under recursive acronym (Cygnus), Acme, and mung. Discovering backronyms is a common form of wordplay among hackers.
Wonder if the guy knows what he's talking about?