minor nit: i don't think rms is a "Dr.", since he didn't get a Ph.D. (unless he has a secret M.D.) From wikipedia: "Stallman then enrolled as a graduate student in physics at MIT, but abandoned his graduate studies while remaining a programmer at the MIT AI Laboratory. Stallman abandoned his pursuit of a doctorate in physics in favor of programming." perhaps he has an honorary doctorate?
From the same wikipedia article: 1996: Honorary doctorate from Sweden's Royal Institute of Technology [85] 2001: Honorary doctorate, from the University of Glasgow [89] 2003: Honorary doctorate, from the Vrije Universiteit Brussel [91] 2004: Honorary doctorate, from the Universidad Nacional de Salta. [92] 2007: Honorary doctorate, from the Universidad de Los Angeles de Chimbote. 2007: Honorary doctorate, from the Uni…
(edit: and Bob Barker, Tim Allen... obviously, RMS has accomplished more than many PhDs, but you shouldn't refer to a holder of an honorary doctorate as "Dr.")