I love how I know RMS = Richard M Stallman, but my brain always auto expands it to Root Mean Squared first. Definitely up there in the divine rankings of the three letter acronyms of old.
In the '90s (or early 2000's?), I remember seeing a photo of Stallman Jesus on the left arrayed against Bill Gates on the right, with Stallman being the figurehead for the open-source coalition arrayed against the might of Microsoft. I've not been able to find that photo since though.
Matthew, which goes well with his moniker of Saint IGNUcius.
/joke
Apparently I failed. Sorry.