Like manga, I hate it when they, for example, transliterate さん as -san, when there is an “equivalent” word for it, like Mr. but would it carry the same connotation as the source material? I cringe when I buy translated versions of Japanese literature due to this (which is why I stick to the source material), it just… does not sit well, I mean instead of writing -sensei, -senpai, or -sama there are “equivalents” in English for those but the catch is that would it work well upon translation?
If you use -san it registers as ‘oh these people are Japanese and addressing each other with Japanese honorifics’ while if you have a character who just keeps calling their peers ‘mister’ they kind of just come across as weird Agent Smith style constructs because nobody does that in English.