Holy Christ, Buuhan. What's with all the backwards and completely ridiculous post today?!
He purposely did such and stated he did it so "no matter how gloomy the situation got, the art style will lessen the negative impact".
You're completely misquoting Oda-sensei. I have the US SJ where he says this in an interview. And he says characters DONT DIE because he doesn't want the manga to feel gloomy after big battles are won. It has nothing to do with the art style.
It is a kids show in Japan, I find it hard to believe but I guess that's due to the fact I don't live in Japan and I don't see tons of little Japanese kids running around in the streets yelling gomu gomu no attacks out.
I think the term "Kid show" is really misleading. I'd call it family show as in, OP has older fans as well in Japan. It's hard to explain since there is no equivalent for this kinda thing in the western world. I mean it's closer to like Shrek or SPongebob maybe? LAWL..sry those're the closest metaphors I could think of./
But what I'm saying is though, it is pegged as slightly kiddy, adults and the like watch it as well and there are things obviously put in OP to draw in older folks too. Y'know sex injokes, fanservice, drama,etc. It's meant to be something you can park your kids infront of to enjoy Luffy and Usopp's silly antics,but enjoy yourself for the more mature things that're going on in the show as well. I mean, I've seen lots of adult Japanese celebs mention being avid readers of the One Piece manga,so it's not STRICTLY some kiddy things, the way "kiddy" things are over here. But meh..I'm sure reading the manga over watching the anime is more accepted regardless of the series.
And yeha, I think American fans are turned off of OP because part of the reason they like anime is BECAUSE it seems so different from "cartoons". OP is a series that resembles american cartoons, so it's gonna turn people off. Not to mention it's about pirates, which doesn't feel Japanese enough for many anmeritaku or whatever. Part of the reason Naruto and Bleach are popular is because they immediately have more generic looks so you can tell they're anime. And also because their concepts are centered around traditional(and generic) japanese anime themes like ninjas and samurai. While Japanese fans are obviously alittle sick of these concepts, a big portion of american fans watch anime FOR things like samurai and ninja. I mean look at Samurai Champloo. It's popular in the west and totally bombed in Japan.
Frankly, OP isn't "Japanese-y" or anime-ish looking enough for many american fans. The same concepts that appealed to Japanese fans wanting something different and unique will defintely turn off the western audience who wants something different from cartoon (i.e. generic anime).