for me personally, if I can’t pronounce the name as it would be pronounced in its native language, then I probably don’t have a strong enough of a connection to the language/culture to be using the name.
for instance, I love the name [name_f]Lumi[/name_f], and its meaning is even deeply significant and special to me. however, I’m not confident at all in my ability to pronounce it correctly in Finnish (specifically, the correct pronunciation of the “u”). therefore, I have concluded that I’m not Finnish enough to be using the name. (I’m actually not at all Finnish but my point is more that I am too far removed from the Finnish language and culture to use their names)
I don’t necessarily judge others by these standards though. this is just how I decide what I feel comfortable using.