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Stallman's writing is reminiscent of The Jargon File or FOLDOC. There are many "silly" terms like the ones you mention in those collections. (More on textfiles.com.) Stallman was a part of that era. Maybe he's just an original 1970's "hacker" trying to stay true to his ideals. They liked to create their own counter culture vocabulary.

Then you have Zuckerberg who puts some blurb in Facebook's first SEC filings that his website^W company will follow the "hacker" ethos. What was he doing there, using that term? He sure has a lot of corporate sponsorship for a "hacker".

Imagine Stallman and Zuckerberg in a certain American game show that ran for several decades. Hint: The game's title relates to honesty.

"Will the real 'hacker' please stand up?"