Yeah, I guess that would be annoying. People can never say my last name right so I just learn to ignore it.
I just don't always trust the Japanese because...well...I don't speak it. I don't pretend to either. And fansubs or whatever aren't always correct. Plus, I'm just too lazy to read subtitles all the time. I use to a lot when I first got into anime, but now I just learn to like the dub. Again, most of them aren't terrible. I don't like Naruto enough to really complain about it's dub. I like it, but I also don't ever watch it. The few times I do, I just shrug and move on when they do/say stupid things.