RMS could have taken a photo of his screen, or done something cheeky like dump his screen to a padded ASCII text file and submitted that. Stick in the mud.
Linus Torvalds often says that he does not know how to do X (like install a Linux distribution, or other simple stuff). I wager that it's a status thing.
Thanks for asking, I had to search the quote since I recalled it from memory. I couldn't find it, but here's the closest I got [1]. The disdain and arrogance of this person is just incredible.