I don't care if someone is really interested in all that stuff. There's definitely overboard, though. Acting like Japan is a magical place of unicorns and chocolate swans is a bit much, especially when they don't even know anything about it other than they like anime and think the language is hella coo'.

I have had Japanophile friends in the past and the worst thing for me was they refused to listen to any kind of music unless it's named something stupid like Shirananki Tokomoto Sagi~ OneTrueHeart(SukiDesuULTRAmix). They would denounce all music from the rest of the planet. That's what I mean when I say overboard. If you want to listen to J-songs that all sound the same in a language you can't even understand that's fine by me, but don't act like all other music in the world is dumber than Carlos Mencia by default.