I don't know about spelling, I think I've gotten a lot of aberrations from people about names. verses actually writing them out. I'm not sure if it's because they can't spell it or they don't really fully remember the name.
possible because the names are really strange: Zautcha, chu-chang, Eaucha, Huā, Tamagi-zu,( the zu is pronounced using the Chinese zu sound) oyaluyang ect. partially because of the names in general sound strange to most people.
mostly I have people who cannot pronounce the names. Either they ask me how to say them or they actually try to say it to me. So I can hear them.