it IS that big of a deal!! :(
when the chemistry / relationship between the characters is actually good, and the dynamic + nuance + progress of their relationship is important... i keep seeing readers complaint about this aspect of localization again and again, in legal and illegal alike.
i swear it's not hard to just keep the hyung / noona / oppa / eonni / sunbae / -ssi and explain in footnotes just once in the beginning. :((
i don't care about most titles... but some titles HAD to keep the honorifics so the emotional aspects delivered better!!!
It is a big deal
I know it's not that big of a deal but I really hate it when the translators make yoohyun call yoojin "yoojin" instead of "hyung".. I HATE IT I HATE IT!!