If you look through forums you'll find hundreds of examples of English speakers using either the Japanese names or direct translations.
Or does that honor go to gen IV?
Uh... how far back in the forums are you looking? October 2010? January 2011?
GameFAQs hasn't always archived topics, so I'd be stunned if you could find an archive from early third-gen days. Probably not even early fourth-gen. --- Creator of Jay's Journey (see quote!) "It's not ten years old! Therefore, it sucks!" - Nostalgia whores everywhere