It's not "RAW", it's just "raw"
At the end of this old post by John Nack at Adobe I found corroboration of my feeling that putting “RAW” (as in, raw image files from digital cameras) in all caps is silly. Some might feel this is a level of detail that only concerns copy editors and trademark lawyers, but I’m like that sometimes.
I’ve always preferred the nice, simple “raw” as the term for this sort of format. Saying “RAW” seems a little aggro (“RAW is WAR!!”), like you need to make the little devil-horns with your hand while saying it. The term is neither an acronym (RAW) nor a proper name (Raw), but rather a generic descriptor for a whole class of formats. Therefore Adobe just says “raw.”
David Krauth commented on Wed Aug 8 18:54:37 2007:
As a connoisseur of fine Apple products, I too chafe at similar such erroneous designations when referring to a Mac (of the Macintosh variety) - its not a MAC (as in Media Access Control).