Funny, I've been shooting digitally since 2007 and I've never seen RAW spelled other than RAW. I guess we've been doing it all wrong :shrug:
I saw it used both ways. My question about which one is right was answered as soon as I bothered to look up what it is, which I did when I got interested in raw photography.
I’ve been in the film industry since 2010 and yes I see RAW but any camera department will tell you it’s just “raw” unless you’re talking about a specific raw codec that has “RAW” in the name. The reason no one corrects anyone is that it’s such a common thing and it doesn’t have any major consequences. “We are shooting raw” vs. “REDCODE RAW” (most people just say “red raw” but just giving full name for clarity).
There’s no need to be lowkey rude about it either way.
To be fair, it's essentially de facto convention at this point in the ecosystem, regardless of what's "right" or "correct". No one is gonna bat an eye regardless if you write RAW or raw either.